Joshua 4:12 in the World English Bible
The children of Reuben, and the children of Gad, and the half-tribe of Manasseh crossed over armed before the children of Israel, as Moses spoke to them.
Context
11 And it came to pass, when all the people were clean passed over, that the ark of the LORD passed over, and the priests, in the presence of the people.
12 And the children of Reuben, and the children of Gad, and half the tribe of Manasseh, passed over armed before the children of Israel, as Moses spake unto them:
13 About forty thousand prepared for war passed over before the LORD unto battle, to the plains of Jericho.