Deuteronomy 11:18

18 Place these words on your hearts. Get them deep inside you. Tie them on your hands and foreheads as a reminder.

Deuteronomy 11:18 Meaning and Commentary

Ver. 18-20. Therefore shall ye lay up these my words in your heart, and
in your soul
Treasure up the laws of God delivered to them in their minds, retain them in their memories, and cherish a cordial affection for them; which would be an antidote against apostasy, idolatry, and other sins, ( Psalms 119:11 )

and bind them for a sign upon your hand, that they may be as frontlets
between your eyes;
of this and the two following verses, (See Gill on Deuteronomy 6:7), (See Gill on Deuteronomy 6:8), (See Gill on Deuteronomy 6:9).

Deuteronomy 11:18 In-Context

16 But be vigilant, lest you be seduced away and end up serving and worshiping other gods

17 and God erupts in anger and shuts down Heaven so there's no rain and nothing grows in the fields, and in no time at all you're starved out - not a trace of you left on the good land that God is giving you.

18 Place these words on your hearts. Get them deep inside you. Tie them on your hands and foreheads as a reminder.

19 Teach them to your children. Talk about them wherever you are, sitting at home or walking in the street; talk about them from the time you get up in the morning until you fall into bed at night.

20 Inscribe them on the doorposts and gates of your cities