What are Christians supposed to do?

2Tm:2:19: Nevertheless the foundation of God standeth sure, having this seal, The Lord knoweth them that are his. And, Let every one that nameth the name of Christ depart from iniquity.

Mk:16:15: And he said unto them, Go ye into all the world, and preach the gospel to every creature.

Mk:1:15: And saying, The time is fulfilled, and the kingdom of God is at hand: repent ye, and believe the gospel.


Acts:8:12: But when they believed Philip preaching the things concerning the kingdom of God, and the name of Jesus Christ, they were baptized, both men and women.

1Cor:9:27: But I keep under my body, and bring it into subjection: lest that by any means, when I have preached to others, I myself should be a castaway.

1 John:1-6
1: My little children, these things write I unto you, that ye sin not. And if any man sin, we have an advocate with the Father, Jesus Christ the righteous:
2: And he is the propitiation for our sins: and not for ours only, but also for the sins of the whole world.
3: And hereby we do know that we know him, if we keep his commandments.
4: He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him.
5: But whoso keepeth his word, in him verily is the love of God perfected: hereby know we that we are in him.
6: He that saith he abideth in him ought himself also so to walk, even as he walked.