And it came to pass, when God caused me to wander (or to go on pilgrimages) from my father's house,—Elohim, usually construed with a singular verb, is here joined with a verb in the plural, as an accommodation to the polytheistic stand-point of Abimelech (Keil), as a proof that Elohim is to be viewed as a Pluralis Majestaticus (Kalisch), as referring to the plurality of Divine manifestations which Abraham had received (Lange), as showing that Elohim here signifies angels (Calvin), or, most likely, as an instance of the literal meaning of the term as the supernatural powers (Murphy.
Cf. Genesis 35:7; Exodus 22:8; 2 Samuel 7:23; Ps 58:12—that I said unto her, This is thy kindness which thou shalt show unto me. The third plea which the patriarch presented for his conduct; it had no special reference to Abimelech, but was the result of an old compact formed between himself and Sarah.
At every place whither he shall come, say of me, He is my brother (cf. Genesis 12:13).