Question: What of this scripture which speaks of elders “Them that sin rebuke before all” in 1 Tim 5:20? If Christians don’t sin why the instruction to rebuke those that sin?
Answer: “Them that sin rebuke before all” 1Tim 5:20. This is speaks of elders rebuking those they have the oversight over. It would also be applicable to all saints including elders. The Bible doesn’t teach that you can’t sin but it does teach that the Bible standard is that you don’t commit willful or known sins. “My little children, these things write I unto you, that ye sin not.” (1Joh 2:1).
That God provides provision in salvation to be free from all willful and known sinning is very clear in the scriptures. 1Cor 10:13, 2Thess 3:3, 2Pet 1:10, and Jude 1:20 just to name a few.
But if a Christians does live below the Bible standard and spits in God’s face by wallowing in the excrement and barf (2Pet 2:20-22) of the world there is a way back. “And if any man sin, we have an advocate with the Father, Jesus Christ the righteous” (1Joh 2:1).
Godly sorrow, confession of sin and repentance would be required to be restored back to a right relationship with God.