God has made us all able ministers of the new testament.
2 Corinthians 3:4And such trust have we through Christ to God-ward: 5Not that we are sufficient of ourselves to think any thing as of ourselves; but our sufficiency is of God; 6Who also hath made us able ministers of the new testament; not of the letter, but of the spirit: for the letter killeth, but the spirit giveth life.
2 Corinthians 4:5For we preach not ourselves, but Christ Jesus the Lord; and ourselves your servants for Jesus' sake. 6For God, who commanded the light to shine out of darkness, hath shined in our hearts, to give the light of the knowledge of the glory of God in the face of Jesus Christ. 7But we have this treasure in earthen vessels, that the excellency of the power may be of God, and not of us.
Matthew 10:17But beware of men: for they will deliver you up to the councils, and they will scourge you in their synagogues; 18And ye shall be brought before governors and kings for my sake, for a testimony against them and the Gentiles. 19But when they deliver you up, take no thought how or what ye shall speak: for it shall be given you in that same hour what ye shall speak. 20For it is not ye that speak, but the Spirit of your Father which speaketh in you.
John 16:13Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear, that shall he speak: and he will shew you things to come. 14He shall glorify me: for he shall receive of mine, and shall shew it unto you. 15All things that the Father hath are mine: therefore said I, that he shall take of mine, and shall shew it unto you.
John 14:26But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you.
Apply that faith in Jesus Christ when the Lord leads you to minister. This is why it is not on us to strive with man as in we are not to argue.
2 Timothy 2:23But foolish and unlearned questions avoid, knowing that they do gender strifes. 24And the servant of the Lord must not strive; but be gentle unto all men, apt to teach, patient, 25In meekness instructing those that oppose themselves; if God peradventure will give them repentance to the acknowledging of the truth; 26And that they may recover themselves out of the snare of the devil, who are taken captive by him at his will.
The yoke of the ministry and the success is on the Lord.
1 Corinthians 3:5Who then is Paul, and who is Apollos, but ministers by whom ye believed, even as the Lord gave to every man? 6I have planted, Apollos watered; but God gave the increase. 7So then neither is he that planteth any thing, neither he that watereth; but God that giveth the increase.
Apply your faith in Him in the ministry and rest in Him. He is Lord.