20:9 Then Abimelech called Abraham, and said unto him, What hast thou done unto us? and what have I offended thee, that thou hast brought on me and on my {k} kingdom a great sin? thou hast done deeds unto me that ought not to be done.
(k) The wickedness of the king brings God's wrath on the whole realm.
20:9 Thou hast done deeds that ought not to be done - Equivocation and dissimulation, however they may be palliated, are very ill things, and by no means to be admitted in any case. He takes it as a very great injury to himself and his family, that Abraham had thus exposed them to sin, What have I offended thee? - If I had been thy worst enemy, thou couldst not have done me a worse turn, nor taken a more effectual course to be avenged on me. Note, We ought to reckon, that those do us the greatest dislikedness in the world, that any way tempt us or expose us to sin, though they may pretend friendship, and offer that which is grateful enough to the corrupt nature. He challenges him to assign any just cause he had to suspect them as a dangerous people for an honest man to live among.
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.
