John Gill Commentary Genesis 48:7

"And as for me, when I came from Paddan, Rachel died by me in the land of Canaan in the way, when there was still some distance to come unto Ephrath: and I buried her there in the way to Ephrath (the same is Beth-lehem)." — Genesis 48:7 (ASV)

And as for me, when I came from Padan
From Syria, from Laban's house: Rachel died by me in the land of Canaan ;

his beloved wife, the mother of Joseph, on whose account he mentions her, and to show a reason why he took his sons as his own, because his mother dying so soon, he could have no more children by her; and she being his only lawful wife, Joseph was of right to be reckoned as the firstborn; and that as such he might have the double portion, he took his two sons as his own, and put them upon a level with them, even with Reuben and Simeon.

By this it appears, as by the preceding account, that Rachel came with him into the land of Canaan, and there died: in the way, when there was yet but a little way to come unto Ephrath ; about a mile, or two thousand cubits, as Jarchi observes: and I buried her there in the way of Ephrath ; where she died,

and dying in childbed, could not be kept so long as to carry her to Machpelah, the burying place of his ancestors; and especially as he had his flocks and herds with him, which could move but slowly; and what might make it more difficult to keep her long and carry her there might be, as Ben Melech conjectures, summertime; and the Vulgate Latin adds to the text, without any warrant from the original, "and it was springtime"; however, she was buried in the land of Canaan, and which is taken notice of, that Joseph might observe it:

it follows, the same [is] Bethlehem ; that is, Ephrath; and so Bethlehem is called Bethlehem Ephratah, (Micah 5:2) ; whether these are the words of Jacob, or of Moses, is not certain, but said with a view to the Messiah, the famous seed of Jacob that should be born there, and was.