2 Chronicles 6:6 records God choosing Jerusalem — the reason Jesus calls it 'the city of the great King'.

Psalm 48:2 directly calls Jerusalem 'the city of the great King' — the exact phrase Jesus uses here.

Psalm 99:5 calls to worship at God's footstool — the same imagery Jesus uses for the earth in his prohibition of oaths.

Malachi 1:14 calls God 'a great King' — the same title Jesus applies to Jerusalem in Matthew 5:35, reinforcing His authority.

Psalm 95:3 declares the Lord a 'great King' — the exact title Matthew 5:35 uses for Jerusalem's ruler, linking worship to Jesus' teaching.

Isaiah 66:1 says 'earth is my footstool' — the very phrase Jesus alludes to in Matthew 5:35, grounding His oath teaching in Scripture.

Acts 7:49 quotes Isaiah 66:1 directly — the same 'heaven my throne, earth my footstool' that underlies Matthew 5:35.

Hebrews 12:22 describes Mount Zion, the heavenly Jerusalem — the ultimate reality of the earthly city Jesus calls 'city of the great King' in Matthew 5:35.

Ezekiel 43:7 speaks of God's throne and the place for soles of his feet — reinforcing the footstool imagery in Matthew 5:35 for the temple.

Psalm 87:2 expresses God's love for Zion — the foundation for honoring Jerusalem as the city of the great King.