What is a minister of God?

You write it right, but you've forgotten some biblical truths.
In order to know which Church true you need to know whether they have Apostolic succession. The servants of God are in the Church of Christ!
On this forum there was a topic about this supposedly not a biblical practice, but it's just a consequence of the conflict between Catholics and Protestants without taking into account the position of other Christians.

Apostolic succession is a God-established way of preserving and transferring hierarchical service in the Church from the Holy Apostles through the Sacrament of the Priesthood.
Apostolic succession presupposes not only the visible expression of the Episcopal ordinations (ordinations), but also the transfer of the blessed gifts of the Holy Spirit, on which the hierarchical Ministry of the Church is based.
According to Scripture, the Holy Apostles, who received the fullness of this Ministry From the Lord himself, after the descent of the Holy Spirit(Jn. 20:21-23; Matt. 28:19-20; MK.16:15-16; LK.24:47-49; acts.1:8) ordained the first bishops (acts. 14:23; 20:28; 2 Tim.1: 6 et al.) and commanded to pass through the Sacrament of Episcopal ordination the fullness of the blessed gifts of the Church hierarchy (1Tim. 5:22; tit. 1:5).


From the Old Testament we know that of the people of Israel only the tribe of Levi had a priestly succession even God said: 'and you will be with me a Kingdom of priests and a Holy people; these are the words that you will say to the children of Israel' (Exodus. 19:6)
All the rest of the Jews could not be priests, although called a Holy nation. In the New Testament, Christians are such a people: Therefore I tell you that the Kingdom of God will be taken away from you and given to the people who bear its fruit;
Matthew 21:43

After forty years of wandering in the wilderness, Moses brought the children of Israel to the promised land. But by the will of God was not given to enter it to Moses. The prophet died in the land of Moab, leaving behind a successor. We learn from the Bible that the succession of grace was established by God Himself “ " and the Lord said unto Moses, take unto you Jesus, the son of Naveen, a man in whom there is a Spirit, and lay thy hand upon him... and give him of thy glory, that all the society of the children of Israel may hear him” (num. 27:18,29). So did the prophet “ " and Joshua the son was filled with the spirit of wisdom, because Moses laid his hands upon him, and the children of Israel obeyed him, and did as the Lord commanded Moses” (Deut. 34:9).

As in Old Testament times God chose prophets to Israel, as God incarnate, Jesus Christ gives power to his Apostles: “...as the Father has sent Me, so send I you. Having said this, he breathed on them and said: receive the Holy Spirit. Whoever's sins you forgive, they are forgiven; whosoever sins you retain, they are retained” (Jn. 20:21-23).
The Lord gave this power to the twelve disciples and later to the Apostle Paul. Another thing is that at Pentecost the Apostles were baptized by the Holy Spirit: "... but you will receive power when the Holy Spirit comes upon you; and you will be my witnesses in Jerusalem and in all Judea and Samaria, and even to the ends of the earth" (acts. 1:8). The same gifts he received that day about three thousand people being baptized in the name of Jesus Christ. But the power to forgive or forsake sins, to deliver the priesthood in God's name, is given only to the Apostles.

Opponents of this usually refer to the lines taken out of the context of the Scripture, where it is said that in the Jerusalem Church the whole Assembly chose the clergy. However, these elections were offered by the Apostles themselves and then: "... they were put before the Apostles, and these, having prayed, laid hands on them" (acts. 6:6). In addition, the Apostle Paul writes to Timothy: "do not lay your Hands on anyone hastily" (1 Tim. 5:22). It is obvious that The Apostle Paul instructed Bishop Timothy to ordain presbyters, not the Assembly of laity.
On the other hand, only legally ordained priests, but not laymen, could perform the rites (some of them were later called Sacraments): "are any of you sick? Let him call the elders of the Church, and let them pray over him, anointing him with oil in the name of the Lord, and the prayer of faith shall heal the sick and restore him the Lord; and if he has done sins, they shall forgive him" (James. 5:14-15).
How to define the Apostolic Church, because many false prophets come under the name of Christ and declare their God-chosen. Answer is very simple, for example in the third century, Tertullian said: “Let them (the heretics) show the commencement of their churches!"The beginnings of Protestant churches, at best, can be traced back to the sixteenth century, and the Neo-Protestants arose in the 20th or 21
Almost all the "founders" of new Christian groups like to refer to the MF.18: 19-20: "Verily also I say unto you, if two of you agree on the earth to ask for any work, whatever they ask shall be of My father in Heaven, for where two or three are gathered in My name, there I am in their midst." But they forget about the other biblical verses: "Aaron (as) and his sons give to their priest's office; and if the stranger who comes near shall be put to death" (num. 3:10), and in the New Testament: "And no man taketh this honor but he that is called of God, as was Aaron" (Heb. 5:4).
But maybe any group of people who call themselves Christians has the right on behalf of God to supply themselves with clergy? Jesus Christ answers his apostles and to all Christians: "ye have Not chosen Me, but I have chosen you, and ordained you..." (Jn. 15:15-16). Christ Himself was the Shepherd (Jn. 10: 11,16) and set other shepherds (Eph.4:11; 1 pet.5:1-5).
The Lord, by his promise, enables those gathered in the name of Christ to pray, study the Bible, or sing songs about God. But in the Autonomous communities there is not the fullness of the blessed gifts that gives life to the Apostolic Church. At the same time, the Lord in various ways points the way to the true Church, which he created, promising his disciples: "I am with you all the days until the end of the century" (MT. 28:20).
The disciples of Christ left the earthly life, passing from glory to their successors, as in the old Testament time did by the order of the Lord the Theologian Moses. The new Testament did not abolish, but continued this tradition, as confirmed by the Apostle Paul: "do not be ignorant of the gift that is in you, which is given to you by prophecy with the laying on of the hands of the priesthood" (1Tim. 4:14)

As for the Church hierarchy. It was established in Ancient Israel, so the question "are all the Apostles? are all prophets? are all teachers? are all miracle workers?"(1 cor. 12:29) did not cause confusion – all knew and questioned: "He gave some to be Apostles, some prophets, some Evangelists, and some pastors and teachers, for the perfecting of the saints, for the work of Ministry, for the edifying of the body of Christ" (Eph. 4:11-12). Note: for the creation, not the dismemberment of the body of Christ!
From the side of the Non- Apostolic churches we hear: for two thousand years the teaching of the Church of the first Christians was distorted and, therefore, they say, it took new churches that are not stained with sins. Especially such statements are typical for Neo-Protesnatnts communities that emerged in the late 20th-early 21st centuries. What can we say of such zealots of piety?
The Church is the immaculate Body of Christ (Col. 1: 24; Eph.5: 27), sins are committed by its individual representatives. 
Second, the most powerful argument in this dispute is the Genealogy of our Lord Jesus Christ – both before and after king David, there were sinners, and wicked kings. Even the wisest Solomon succumbed to passions, took wives of foreigners and "... his wives bowed his heart to other gods, and his heart was not completely devoted to the Lord his God, as the heart of David, his father" (3tsar. 11:4). We also know from Scripture that the first shepherd who sinned before God was none other than the high priest Aaron: at the request of the people, he collected gold ornaments, cast corpuscles from them and built an altar to worship the idol (ex. 32:2-5). Sin, and the Apostles of the Church of Christ, because no man will live and not sin (3Цар.8:46; 2 Chronicles.6:36; ECC.7:20).
Therefore, the lawfully ordained priesthood does not depend on the ratio of sinful or pious people, but is determined by Apostolic succession. Priests are people from our human society, not angelic beings from Paradise. To the detractors of the Holy authority, set by God in the Church of Christ, even in the Old Testament times gave a worthy answer to the inspired Psalmist David : -Touch ye not my anointed: and do no evil to my prophets.- Psalm 104:15

just10sp
What you wrote doesn't contradict what I wrote. Shrug

Following in Paul’s footsteps, any person who desires to serve God
Yes..but he has to accept ordination from the priesthood:
"do not be ignorant of the gift that is in you, which is given to you by prophecy with the laying on of the hands of the priesthood" (1Tim. 4:14)