Contradiction with Genesis 47:10
While Genesis 47:7 shows Jacob blessing Pharaoh initially, Genesis 47:10 shows him blessing Pharaoh again, which might seem redundant if only one blessing were customary.
Genesis 47:10: And Jacob blessed Pharaoh, and went out from before Pharaoh.
Contradiction with Exodus 10:3
Genesis 47:7 describes Jacob speaking respectfully to Pharaoh, but Exodus 10:3 has God demanding Pharaoh let His people go, showing a contradiction in treatment towards Pharaoh.
Exodus 10:3: And Moses and Aaron came in unto Pharaoh, and said unto him, Thus saith the LORD God of the Hebrews, How long wilt thou refuse to humble thyself before me? let my people go, that they may serve me.
Contradiction with Proverbs 18:23
Proverbs speaks of the poor using entreaties, whereas Genesis 47:7 shows Jacob, who was poor, speaking boldly to Pharaoh.
Proverbs 18:23: The poor useth intreaties; but the rich answereth roughly.
Contradiction with Hebrews 7:7
This verse suggests that the less is blessed by the better, which contradicts Jacob, a humble shepherd, blessing the powerful Pharaoh.
Hebrews 7:7: And without all contradiction the less is blessed of the better.