And Abraham hastened into the tent unto Sarah, and said, Make ready quickly three measures of fine meal, knead it, and make cakes upon the hearth.

King James Translators' Notes

Make ready...: Heb. Hasten

Jamieson-Fausset-Brown Bible Commentary

6. Abraham hastened . unto Sarah . make cakes upon the hearth-Bread is baked daily, no more than is required for family use, and always by the women, commonly the wife. It is a short process. Flour mixed with water is made into dough, and being rolled out into cakes, it is placed on the earthen floor, previously heated by a fire. The fire being removed, the cakes are laid on the ground, and being covered over with hot embers, are soon baked, and eaten the moment they are taken off.

Matthew Henry's Concise Commentary

18:1-8 Abraham was waiting to entertain any weary traveller, for inns were not to be met with as among us. While Abraham was thus sitting, he saw three men coming. These were three heavenly beings in human bodies. Some think they were all created angels; others, that one of them was the Son of God, the Angel of the covenant. Washing the feet is customary in those hot climates, where only sandals are worn. We should not be forgetful to entertain strangers, for thereby some have entertained angels unawares, Heb 13:2; nay, the Lord of angels himself; as we always do, when for his sake we entertain the least of his brethren. Cheerful and obliging manners in showing kindness, are great ornaments to piety. Though our condescending Lord vouchsafes not personal visits to us, yet still by his Spirit he stands at the door and knocks; when we are inclined to open, he deigns to enter; and by his gracious consolations he provides a rich feast, of which we partake with him, Re 3:20.