General Information:

Jacob continues to bless Joseph and his descendants. (See: Genesis 49:22-23)

help you ... bless you

Here "you" refers to Joseph who stands for his descendants. AT: "help your descendants ... bless them" (See: rc://en/ta/man/translate/figs-metonymy)

Here "sky" stands for the rain that helps the crops to grow. (See: rc://en/ta/man/translate/figs-metonymy)

Here "deep" stands for the water underneath the ground that supplies rivers and wells. (See: rc://en/ta/man/translate/figs-metonymy)

Here "breasts and womb" stand for the ability for a mother to have children and feed them milk. (See: rc://en/ta/man/translate/figs-metonymy)