And Abimelech took sheep. Abraham had before received possessions and gifts in Egypt; but with this difference, that whereas Pharaoh had commanded him to depart elsewhere; Abimelech offers him a home in his kingdom. It therefore appears that both kings were stricken with no common degree of fear. For when they perceived that they were reproved by the Lord, because they had been troublesome to Abraham; they found no method of appeasing God, except that of compensating, by acts of kindness, for the injury they had brought on the holy man. The latter difference alluded to flowed hence; that Pharaohs being more severely censured, was so terrified, that he could scarcely bear the sight of Abraham: whereas Abimelech, although alarmed, was yet soon composed by an added word of consolation, when the Lord said to him, He is a prophet, and he shall pray for thee. For there is no other remedy for the removal of fear, than the Lord's declaration that he will be propitious. It is indeed of little advantage for the sinner to present to God only what fear extorts. But it is a true sign of penitence, when, with a composed mind and quiet conscience, he yields himself, as obedient and docile, to God. And seeing that Abimelech allowed Abraham a habitation in his realm, a blessing of no trivial kind followed this act of humanity; because Isaac was born there, as we shall see in the next chapter (Genesis 20:1.)

And Abimelech took sheep, and oxen, and menservants, and womenservants, and gave them unto Abraham,.... In a good measure satisfied with what Abraham had said to excuse himself; and these gifts he gave unto him, that he might, as Jarchi observes, pray and intercede for him, that he and his family might be healed, having understood by the divine oracle that he was a prophet, and if he prayed for him he would be restored to health: and these were not given to bribe him to give his consent that Sarah might be continued with him, since it follows:
and restored him Sarah his wife; untouched by him, as he was directed by God to do.

We often trouble ourselves, and even are led into temptation and sin, by groundless suspicions; and find the fear of God where we expected it not. Agreements to deceive generally end in shame and sorrow; and restraints from sin, though by suffering, should be thankfully acknowledged. Though the Lord rebuke, yet he will pardon and deliver his people, and he will give them favour in the sight of those with whom they sojourn; and overrule their infirmities, when they are humbled for them, so that they shall prove useful to themselves and others.

Abimelech then gave him back his wife with a liberal present of cattle and slaves, and gave him leave to dwell wherever he pleased in his land. To Sarah he said, "Behold, I have given a thousand shekele of silver to thy brother; behold, it is to thee a covering of the eyes (i.e., an expiatory gift) with regard to all that are with thee ("because in a mistress the whole family is disgraced," Del.), and with all - so art thou justified." The thousand shekels (about 131) were not a special present made to Sarah, but indicate the value of the present made to Abraham, the amount of which may be estimated by this standard, that at a later date (Exodus 21:32) a slave was reckoned at 30 shekels. By the "covering of the eyes" we are not to understand a veil, which Sarah was to procure for 1000 shekels; but it is a figurative expression for an atoning gift, and is to be explained by the analogy of the phrase פּני פ כּפּר "to cover any one's face," so that he may forget a wrong done (cf. Genesis 32:21; and Job 9:24, "he covereth the faces of the judges," i.e., he bribes them). ונוכחת can only be the 2 pers. fem. sing. perf. Niphal, although the Dagesh lene is wanting in the ת; for the rules of syntax will hardly allow us to regard this form as a participle, unless we imagine the extremely harsh ellipsis of נוכחת for אתּ נוכחת. The literal meaning is "so thou art judged," i.e., justice has been done thee.