Exodus 24:4
4 And Moses kwrote down all the words of the Lord. He rose early in the morning and built an altar at the foot of the mountain, and ltwelve pillars, according to the twelve tribes of Israel.
Exodus 28:21
21 There shall be ztwelve stones with their names according to the names of the sons of Israel. They shall be like signets, each engraved with its name, for the twelve tribes.
Joshua 4:3
3 and command them, saying, ‘Take btwelve stones from here out of the midst of the Jordan, from the very place where the priests’ feet stood firmly, and bring them over with you and lay them down in the place where you lodge tonight.’”