Psalm 118:13 says 'I was pushed hard... but the LORD helped me' — almost identical to David's experience of enemies confronting and the LORD being his support.

Psalm 46:1 declares God is a present help in trouble — the same truth David experienced when the LORD was his support in calamity.

1 Samuel 30:6 shows David strengthening himself in the LORD during distress — the same pattern as the LORD being his support in Psalm 18:18.

2 Samuel 22:19 is the parallel account of this same song, word-for-word identical, confirming the historical context.

Obadiah 1:10-14 condemns Edom for attacking Judah in their day of calamity — the same scenario where David says the LORD was his support.

Jeremiah 18:17 uses 'day of their calamity' to describe God's abandonment, contrasting with Psalm 18:18 where God is the support.

Zechariah 1:15 shows God's anger at nations who 'furthered the disaster' — echoing enemies confronting in day of calamity, from God's perspective.