In Exodus 25:21, the same command is given with the additional instruction to place the mercy seat on top of the ark.

In Exodus 34:29, Moses again carries the two tablets of testimony, highlighting their origin and purpose.

In Exodus 32:15, Moses descends with the tablets of testimony, the contents to be placed in the ark.

In Exodus 31:18, God gives the two tablets of testimony, the very items to be placed in the ark.

In Exodus 40:20, this command is fulfilled as Moses actually puts the testimony into the ark.

In Exodus 16:34, Aaron places manna before the testimony, showing the same ark where the testimony is kept.

In Exodus 30:36, incense is put before the testimony, the same ark that holds the tablets.

In Exodus 27:21, the lamp is tended before the testimony, referencing the ark that contains the testimony.

Exodus 38:21 calls the tabernacle 'the tabernacle of the testimony,' linking it to the tablets placed inside. Both highlight the testimony as central.

In Exodus 26:33, it specifies that the ark of the testimony is to be placed behind the veil in the Holy of Holies.

Deuteronomy 10:2-5 recounts Moses putting the new tablets into the ark, directly fulfilling the command in Exodus 25:16.

1 Kings 8:9 confirms that only the two tablets were inside the ark, exactly as commanded. This verifies the fulfillment of Exodus 25:16.

In Hebrews 9:4, it adds that the ark also contained the golden pot of manna and Aaron's rod, expanding the contents beyond just the testimony.

In Deuteronomy 10:5, Moses recalls putting the tablets into the ark, confirming the obedience to this command.

Numbers 17:4 mentions depositing Aaron's rod 'before the testimony'—the same tablets Moses placed in the ark. Both use 'testimony' as a key location.

Acts 7:44 calls the tabernacle the 'tent of witness,' referring to the testimony inside. This NT verse echoes the OT description of the tabernacle containing the tablets.

Deuteronomy 31:26 instructs placing the Book of the Law beside the ark, not inside—a related but distinct instruction about what goes with the ark.

In Joshua 4:16, the ark is referred to as the 'ark of the testimony,' showing the enduring importance of its contents.