Baby's STS grow at 7 weeks, and can distinguish the words of human. Tongue, bring life and death. words make a difference, especially from thosec we care about. Life-taking : 3, judging everyone Self: 2, the worst criticism of self Do not let any unwholesome talk come out of your mouths, but only what is helpful for building others up according to their needs, that it may benefit those who listen. If you think something good, speak it out. Words can be healing, but thoughts can't.