In the Bible, usually means the whole tenor of one’s life, intercourse with his fellow men, Galatians 1:13 Ephesians 4:22 1 Peter 1:15. Another word is employed in Philippians 3:20, which means, "our citizenship is in heaven." For conversation in modern sense of discourse, the English version generally has communication, 2 Kings 9:11 Matthew 5:37 Ephesians 4:29.
These dictionary topics are from American Tract Society Bible Dictionary published in 1859. Public Domain, copy freely.
Rand, W. W. "Entry for 'CONVERSATION'". "American Tract Society Bible Dictionary".