'Frontlets Between Your Eyes' in the Bible

So it shall serve as a sign and a reminder on your [left] hand (arm) and as frontlets between your eyes, for by a strong and powerful hand the Lord brought us out of Egypt.”

And you shall bind them for a sign upon your hand, and they shall be as frontlets between your eyes.

Therefore shall ye lay up these my words in your heart and in your soul, and bind them for a sign upon your hand, that they may be as frontlets between your eyes.