Moses
Genesis 23:3ESV·traditional attribution

And Abraham rose up from before his dead and said to the Hittites,

John Calvin Reformed @genevareformer

3. And spake unto the sons of Heth . Moses is silent respecting the rite used by Abraham in the burial of the body of his wife: but he proceeds, at great length, to recite the purchasing of the sepulcher. For what reason he did this, we shall see presently, when I shall briefly allude to the custom of burial.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. The humble request which Abraham made to his neighbours, the Hittites, for a burying-place among them, Gen 23:3, Gen 23:4. It was strange he had this to do now; but we are to impute it rather to God's providence than to his improvidence, as appears Act 7:5, where it is said, God gave him no inheritance in Canaan.

Commenting on Genesis 23:3-15

John Gill Reformed Baptist @doctorgill

And Abraham stood up from before his dead,.... The corpse of Sarah, by which he sat pensive and mourning, perhaps upon the ground, as was the custom of mourners, Job 1:13; where having sat awhile, he rose up and went out of the tent, to provide for the funeral of his wife as became him: and spake unto the sons of Heth; the descendants of...