This is the same Ark of the Covenant that was built at the base of Mount Sinai with the 1st Temple in the Wilderness or Tabanacle. The Ark of the Covenant holds the stone tablets of the Law of Moses written with God's own finger, a pot of manna from heaven, and other sacred items.
Did The Ark of the Covenant Have a Direct Connection to Jesus Christ?
Did Ron Wyatt Take People Into the Cave Area?
Do We Have a Sample of Jesus Christ's Blood?
Did Those Samples Have Live Somatids in Them After 2000 Years? (skip to about 7min mark)