When God caused me to wander - Here the word אלהים Elohim is used with a plural verb, (התעו hithu, caused me to wander), which is not very usual in the Hebrew language, as this plural noun is generally joined with verbs in the singular number. Because there is a departure from the general mode in this instance, some have contended that the word Elohim signifies princes in this place, and suppose it to refer to those in Chaldea, who expelled Abraham because he would not worship the fire; but the best critics, and with them the Jews, allow that Elohim here signifies the true God. Abraham probably refers to his first call.

And it came to pass, when God caused me to wander from my father's house,.... In Ur of the Chaldees, from whence God called him to go forth; which laid him under an obligation to depart from thence, and move from place to place, and go he knew not where, as in Hebrews 11:8; or "the Gods", as it is in the plural number, and so the verb in construction with it; not the idol gods, the gods of the Gentiles, as the Targum of Jonathan, who interprets the words thus,"and it was when the worshippers of idols sought to cause men to err, and I went from my father's house;''but the true God, as Jarchi, Aben Ezra, and Ben Melech acknowledge, and is by many Christian interpreters understood of the three Persons in the Godhead:

that I said unto her, this is thy kindness which thou shalt show unto me; this I shall take as a favour done me, as an instance of tender affection unto me:

at every place whither we shall come, say of me; or for the sake of me, as Aben Ezra and Kimchi, in order to save me from the hands of wicked men, whom he feared would slay him for her sake:

he is my brother; and so he hoped, instead of being ill used, he should meet with favour and friendship on her account, being thus nearly related to her: this he observes to Abimelech, to show that this was an old agreement, near thirty years ago, when they first set out on their travels, and was no new device and scheme which they pursued on account of him and his people in particular; but what they had formerly agreed upon should be said in all places wherever they came, and therefore there was no intention to affront Abimelech; only it supposed they might come into places where wicked men dwelt.

And it came to pass, when God caused me to wander from my father's house, that I said unto her, This is thy kindness which thou shalt show unto me; at every place whither we shall come, say of me, He is my brother.

20:13 When God caused me to wander from my father's house - Then we settled this matter. It may be, that God denied Abraham and Sarah the blessing of children so long to punish them for this sinful compact they had made to deny one another: if they will not own their marriage, why should God own it? But we may suppose, that alter this reproof they agreed never to do so again, and then presently we read, Ge 21:1,2, that Sarah conceived.

20:9-13 See here much to blame, even in the father of the faithful. Mark his distrust of God, his undue care about life, his intent to deceive. He also threw temptation in the way of others, caused affliction to them, exposed himself and Sarah to just rebukes, and yet attempted an excuse. These things are written for our warning, not for us to imitate. Even Abraham hath not whereof to glory. He cannot be justified by his works, but must be indebted for justification, to that righteousness which is upon all and unto all them that believe. We must not condemn all as hypocrites who fall into sin, if they do not continue in it. But let the unhumbled and impenitent take heed that they do not sin on, thinking that grace may abound. Abimelech, being warned of God, takes the warning; and being truly afraid of sin and its consequences, he rose early to pursue the directions given him.