Exodus 13:9

It shall be a sign for you on your hand and a reminder on your forehead that the Law of the Lord is to be on your lips. For with a mighty hand the Lord brought you out of Egypt.
BSB · Berean Standard Bible
And it shall be for a sign unto thee upon thine hand, and for a memorial between thine eyes, that the Lord’s law may be in thy mouth: for with a strong hand hath the Lord brought thee out of Egypt.
KJV · King James Version
It shall be for a sign to you on your hand, and for a memorial between your eyes, that the Lord’s law may be in your mouth; for with a strong hand the Lord has brought you out of Egypt.
WEB · World English Bible
And it shall be for a sign unto thee upon thy hand, and for a memorial between thine eyes, that the law of Jehovah may be in thy mouth: for with a strong hand hath Jehovah brought thee out of Egypt.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

a sign
This expression, says Michaelis, alludes to the custom of the Orientals, of burning in their right hand all kinds of marks with the ashes of henna, which gives an indelible colour; and this is done even to this day. They were likewise accustomed to write all kinds of sayings, and frequently superstitious words, on slips or pieces of linen, which they wore as ornaments on their foreheads.
Exodus 13:16; Exodus 12:14; Numbers 15:39; Deuteronomy 6:6, 8; Deuteronomy 11:18, 19; Proverbs 1:9; Proverbs 3:21; Proverbs 6:20–23; Proverbs 7:23; Song of Songs 8:6; Isaiah 49:16; Jeremiah 22:24; Matthew 23:5
may be
Deuteronomy 30:14; Joshua 1:8; Isaiah 59:21; Romans 10:8
strong hand
Exodus 13:3; Exodus 6:1–30; Joshua 1:9; Nehemiah 1:10; Psalm 89:13; Isaiah 27:1; Isaiah 40:10; Isaiah 51:9; Joel 2:11; Revelation 18:8