17 Take the helmet of salvation and the sword of the Spirit, which is the word of God.
9 He must hold firmly to the trustworthy message as it has been taught, so that he can encourage others by sound doctrine and refute those who oppose it.
Ephesians 5:15-16
15 Be very careful, then, how you live —not as unwise but as wise, 16 making the most of every opportunity, because the days are evil.