Deuteronomy 6:8

8 And thou shalt fasten them for a sign upon thy hand, and it shall be immoveable before thine eyes.

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 And these words, all that I command thee this day, shall be in thy heart and in thy soul.
7 And thou shalt teach them to thy children, and thou shalt speak of them sitting in the house, and walking by the way, and lying down, and rising up.
8 And thou shalt fasten them for a sign upon thy hand, and it shall be immoveable before thine eyes.
9 And ye shall write them on the lintels of your houses and of your gates.
10 And it shall come to pass when the Lord thy God shall have brought thee into the land which he sware to thy fathers, to Abraam, and to Isaac, and to Jacob, to give thee great and beautiful cities which thou didst not build,

The Brenton translation of the Septuagint is in the public domain.