Deuteronomy 6:8

8 Write them down and tie them on your hands as a reminder. Also tie them on your foreheads.

Deuteronomy 6:8 Meaning and Commentary

Deuteronomy 6:8

And thou shalt bind them for a sign upon thine hand
As a man ties anything to his hand for a token, that he may remember somewhat he is desirous of; though the Jews understand this literally, of binding a scroll of parchment, with this section and others written in it, upon their left hand, as the Targum of Jonathan here interprets the hand:

and they shall be as frontlets between thine eyes;
and which the same Targum interprets of the Tephilim, or phylacteries, which the Jews wear upon their foreheads, and on their arms, and so Jarchi; of which (See Gill on Matthew 23:5).

Deuteronomy 6:8 In-Context

6 The commandments I give you today must be in your hearts.

7 Make sure your children learn them. Talk about them when you are at home. Talk about them when you walk along the road. Speak about them when you go to bed. And speak about them when you get up.

8 Write them down and tie them on your hands as a reminder. Also tie them on your foreheads.

9 Write them on the doorframes of your houses. Also write them on your gates.

10 The LORD your God will bring you into the land of Canaan. He took an oath. He promised he would give the land to your fathers. He promised it to Abraham, Isaac and Jacob. The land has large, wealthy cities you didn't build.