Psalm 44:17 already asserts they have not forgotten God; verse 20 reinforces the same protest of innocence.

Psalm 9:17 declares that the wicked who forget God go to Sheol — the same forgetting God mentioned in Psalm 44:20.

Psalm 143:6 also uses 'stretch out my hands' in prayer to God — contrasting the hypothetical idolatrous gesture here.

Psalm 7:3-5 uses a similar 'if...then' oath of innocence, showing a common pattern of protest.

Psalm 68:31 has nations stretching hands to God, opposite of stretching hands to a foreign god—contrasting worship vs idolatry.

Psalm 88:9 shows the same 'spread out hands' gesture directed to God in prayer — contrasting the hypothetical idolatry here.

In Exodus 9:29, Moses stretches out his hands to the LORD — the opposite of the idolatrous gesture condemned in Psalm 44:20.

In 1 Kings 8:22, Solomon spreads his hands toward heaven in prayer — contrasting with spreading hands to a foreign god.

In Job 11:13, stretching out hands to God is urged — the opposite of the idolatrous act in Psalm 44:20.

Job 31 contains extensive 'if' oaths of innocence, closely paralleling the conditional protest in Psalm 44:20.

Deuteronomy 32:18 describes forgetting God — the same sin hypothesized in Psalm 44:20.

2 Corinthians 6:14 warns against being yoked with unbelievers — a New Testament parallel to the warning against stretching out hands to foreign gods here.

Deuteronomy 27:15 curses making idols — a parallel condemnation of the idolatry mentioned in Psalm 44:20.