Moses
Genesis 18:6BSB·traditional attribution

So Abraham hurried into the tent and said to Sarah, “Quick! Prepare three seahs of fine flour, knead it, and bake some bread.”

John Calvin Reformed @genevareformer

6. And Abraham hastened into the tent Abraham’s care in entertaining his guests is here recorded; and Moses, at the same time, shows what a well-ordered house he had. In short, he presents us, in a few words, with a beautiful picture of domestic government. Abraham runs, partly, to command what he would have done; and partly, to execute his own duty, as the master of the house.

Matthew Henry Presbyterian @wholebiblehenry

The appearance of God to Abraham seems to have had in it more of freedom and familiarity, and less of grandeur and majesty, than those we have hitherto read of; and therefore more resembles that great visit which, in the fullness of time, the Son of God was to make to the world, when the Word would be flesh, and appear as one of us. Observe here, I.

Commenting on Genesis 18:1-8

John Gill Reformed Baptist @doctorgill

And Abraham hastened into the tent unto Sarah,.... In order to acquaint her with his guests, and to give proper instructions for providing food for them; and this he hasted to do, being hearty in the entertainment of them, and that he might not keep them too long from their journey: and said, to Sarah his wife: make ready quickly three measures of fine meal...