In Exodus 25:16, putting the testimony inside the ark is commanded; here it is reiterated before placing the mercy seat.

In Exodus 25:17, the mercy seat is made; here it is placed on the ark—sequential steps in the tabernacle construction.

In Exodus 26:34, the same command is given to put the mercy seat on the ark in the Most Holy Place—identical instruction.

In Exodus 30:6, the altar of incense is placed before the mercy seat and testimony—directly referencing the items from this verse.

In Exodus 40:34, after the ark is set up per command, God's glory fills the tabernacle, showing His presence above the mercy seat.

In Exodus 16:34, manna is kept before the testimony—both involve the testimony, but one is inside the ark, the other beside it.

Leviticus 16:13 describes the high priest using incense to cover the mercy seat on the Day of Atonement, showing its role in atonement.

1 Kings 8:9 confirms that only the two tablets (the testimony) were in the ark, as commanded.

Revelation 11:19 shows the heavenly ark, fulfilling the earthly pattern established here.

Revelation 15:5 reveals the heavenly 'tent of witness', corresponding to the earthly tabernacle with the ark.

Hebrews 9:4 lists additional items inside the ark (manna, Aaron's rod) not in the original command.

1 Kings 6:16 describes building the inner sanctuary where the ark (with mercy seat) was later placed.