The Lord renewed that covenant with Isaac, and then again with Jacob, repeating the promise that Abraham's descendants would be a blessing to the whole human race. The Lord assured Jacob that he would bless him; he gave him the land that would be his, dividing it into twelve parts, one for each of the tribes. 1
References for Ben Sira 44:22
44.22, 23 Gn 17.19; 26.3-5; 27.28; 28.14.