1 Timothy 4:16
Pay close attention to yourself and to what you teach [people]. Continue doing these things, for in doing them you will both save yourself and those who listen to you.
Ephesians 5:12
For it is shameful even to talk about the things they do in private.
Ephesians 5:15
So, be careful how you live. Do not live ignorantly, but wisely,
Hebrews 12:15
Look carefully [at how you are living] so that no one falls away from God's unearned favor, and that no "poisonous plant sprouts up" to cause trouble and corrupt many people [Note: This is an analogy from Deut. 29:16-18 being used as a warning against the evil influence of wicked people],