As for me. Literally, I, standing alone at the beginning of the sentence by way of emphasis. Equivalent to "So far as I am concerned," or, "I for my part," or, "So far as relates to me." Behold, my covenant is with thee, and thou shalt be—literally, shalt become (cf.
Genesis 2:7), or grow to (cf. Genesis 9:15)—a father of many (or of a multitude of) nations.