Verse 1-12 — The wars of nations make great figure in history, but we should not have had the record of this war if Abram and Lot had not been concerned. Out of covetousness, Lot had settled in fruitful, but wicked Sodom. Its inhabitants were the most ripe for vengeance of all the descendants of Canaan. The invaders were from Chaldea and Persia, then only small kingdoms. They took Lot among the rest, and his goods. Though he was righteous, and Abram's brother's son, yet he was with the rest in this trouble. Neither our own piety, nor our relation to the favourites of Heaven, will be our security when God's judgments are abroad. Many an honest man fares the worse for his wicked neighbours: it is our wisdom to separate, or at least to distinguish ourselves from them, 2 Corinthians 6:17. So near a relation of Abram should have been a companion and a disciple of Abram. If he chose to dwell in Sodom, he must thank himself if he share in Sodom's losses. When we go out of the way of our duty, we put ourselves from under God's protection, and cannot expect that the choice made by our lusts, should end to our comfort. They took Lot's goods; it is just with God to deprive us of enjoyments, by which we suffer ourselves to be deprived of the enjoyment of him.
Verse 13-16 — Abram takes this opportunity to give a real proof of his being truly friendly to Lot. We ought to be ready to succour those in distress, especially relations and friends. And though others may have been wanting in their duty to us, yet we must not neglect our duty to them. Abram rescued the captives. As we have opportunity, we must do good to all.
Verse 17-20 — Melchizedek is spoken of as a king of Salem, supposed to be the place afterwards called Jerusalem, and it is generally thought that he was only a man. The words of the apostle, Hebrews 7:3,. state only, that the sacred history has said nothing of his ancestors. The silence of the Scriptures on this, is to raise our thoughts to Him, whose generation cannot be declared. Bread and wine were suitable refreshment for the weary followers of Abram; and it is remarkable that Christ appointed the same as the memorials of his body and blood, which are meat and drink indeed to the soul. Melchizedek blessed Abram from God. He blessed God from Abram. We ought to give thanks for other's mercies as for our own. Jesus Christ, our great High Priest, is the Mediator both of our prayers and praises, and not only offers up ours, but his own for us. Abram gave him the tenth of the spoils, Hebrews 7:4. When we have received some great mercy from God, it is very fit we should express our thankfulness by some special act of pious charity. Jesus Christ, our great Melchisedek, is to have homage done him, and to be humbly acknowledged as our King and Priest; not only the tithe of all, but all we have, must be given up to him.
Verse 21-24 — Observe the king of Sodom's grateful offer to Abram, Give me the souls, and take thou the substance. Gratitude teaches us to recompense to the utmost of our power, those that have undergone fatigues, run hazards, and been at expense for our service and benefit. Abram generously refused this offer. He accompanies his refusal with a good reason, Lest thou shouldest say, I have made Abram rich: which would reflect upon the promise promise and covenant of God, as if He would not have enriched Abraham without the spoils of Sodom. The people of God must, for their credit's sake, take heed of doing any thing that looks mean or mercenary, or that savors of covetousness and self-seeking. Abraham can trust the Possessor of Heaven and earth to provide for him.