Go Get Your Inheritance - It's Irrevocable -Joshua 17-18.

Joshua 17:4-6 And they came near before Eleazar the priest, before Joshua the son of Nun, and before the rulers, saying, “The Lord commanded Moses to give us an inheritance among our brothers.” Therefore, according to the commandment of the Lord, he gave them an inheritance among their father’s brothers. Ten shares fell to Manasseh, besides the land of Gilead and Bashan, which were on the other side of the Jordan, because the daughters of Manasseh received an inheritance among his sons; and the rest of Manasseh’s sons had the land of Gilead.