This is broken.
I’ve often argued that Paul’s “war against works” was never intended to be used the way the reformers wield it, and that Paul was pushing back against a pious self-righteous boasting about accomplishments and holiness.
In Genesis, it seems like God looks for good works.
After Ham does something (we’re not really sure what) to Noah, the text says that Ham’s brothers address their father’s shame by taking a garment and covering him, shielding him from further humiliation.
But the Hebrew language hides a clue here.
But Shem and Japheth took a garment and laid it on both their shoulders and walked backward and covered the nakedness of their father; and their faces were turned away, so that they did not see their father’s nakedness.
Genesis 9:23 (NASB)
While we read “Shem and Japheth” in English, the Hebrew uses an idiom that doesn’t translate well into English. It’s not “they.” It’s “he,” and it points to Shem as the initiator.
The focus is on Shem.
(Gen. 9:23:) THEN HE, SHEM AND JAPHETH, TOOK A GARMENT. R. Johanan said: “Then they took” is not stated here, but THEN HE TOOK. Shem first showed his courage [in the worthy act] and afterwards Japheth. Ergo: THEN HE, SHEM AND JAPHETH, TOOK A GARMENT.
Midrash Tanchuma Buber, Noach 21:2
Without seeing this, the resulting blessing by Noah makes little sense. While the fate of Ham’s son is repeated, we are told that Shem is God’s man, and Japheth will be blessed by Shem’s abundance.
Why is Shem singled out? The text gives one answer: his good deed.
He also said,
“Blessed be the Lord,
The God of Shem;
And may Canaan be his servant.
May God enlarge Japheth,
And may he live in the tents of Shem;
And may Canaan be his servant.”
Genesis 9: 26-27 (NASB)
And the good deed here is God’s own heart: to defend those who are shamed. We can quibble about drunkenness and nakedness, but the focus is Shem honoring his father and defending the vulnerable from shame.
This is the work God desires. Perhaps this is why God uses Shem.