There are two types of arks mentioned in the scriptures.
One is the Hebrew “aron,” meaning “coffin” or “chest” used for the ark of the covenant. The other well known ark is Noah’s ark; Hebrew, “tebah,” meaning “box” or “chest.”
See Ark of the Covenant, Noah's Ark.
Ark of the Covenant, Ark of God, or Ark of the Testimony: Hebrew “aron,” meaning “coffin” or “chest.” A sacred relic of the Israelite peoples. It has been described as a wooden chest covered by pure gold with an elaborate lid called the Mercy seat. It is believed to have housed the two stone tablets of the Ten Commandments, Aaron's rod, and a pot of manna. This Ark was created according to the pattern given to Moses by God when the Israelites were encamped at the foot of Mount of Elohim, called Mount Sinai in the Torah/Old Testament.
See 3 Moses 37:1-9, 39:4, 13-16, 35-36; 5 Moses 6:1-6; Exodus 25:10-22, 26:33; 30:6, 40:20-21; Numbers 7:89; Deuteronomy 31:25- 26; Jeremiah 3:15-17; Hebrews 9:3-5, Revelation 11:19.