39 Acknowledge and take to heart this day that the LORD is God in heaven above and on the earth below. There is no other.

Read Deuteronomy 4:39 Using Other Translations

Know therefore this day, and consider it in thine heart, that the LORD he is God in heaven above, and upon the earth beneath: there is none else.
know therefore today, and lay it to your heart, that the LORD is God in heaven above and on the earth beneath; there is no other.
“So remember this and keep it firmly in mind: The LORD is God both in heaven and on earth, and there is no other.