For, "He who would love life, And see good days, Let him keep his tongue from evil, And his lips from speaking deceit.
This psalm is prominent in early Christian teaching (see also 1 Peter 2:3; Hebrews 12:14). The text focuses on 1) curbing sins of speech, 2) resisting evil, and 3) doing good, 4) must seek peace and pursue it (v11). It also highlights the promise of blessing for obedience. - NLTSB