That you and your children might be sustained and preserved in this time of famine, and afterwards abundantly multiplied, as God hath promised. By a great deliverance, or, for a great remnant, or escaping, i.e. that you who are now but a handful, escaping this danger, may grow into a vast multitude. The word evasion, or escaping, is here put for the persons that do escape, as it is 2 Chronicles 30:6 Isaiah 10:20; and as captivity is oft put for the captives, as it is Numbers 21:1 Deuteronomy 21:10. And so what was said in the former clause is repeated in this with all emphatical addition.
Related Commentaries of Genesis 45:7
Genesis 45:7
7 And God sent me before you to preservec you a posterity in the earth, and to save your lives by a great deliverance.