Proverbs 4:21 New English Translation

²¹Do not let them depart^[a] from your sight,
guard^[b] them within your heart;^[c]

Proverbs 4:21 tn The Hiphil form יַלִּיזוּ (yallizu) follows the Aramaic with gemination. The verb means “to turn aside; to depart” (intransitive Hiphil or inner causative).
Proverbs 4:21 tn Or “keep” (so KJV, NIV, NRSV and many others).
Proverbs 4:21 sn The words “eyes” and “heart” are metonymies of subject representing the faculties of each. Cf. CEV “think about it all.”

New English Translation (NET)