Hebrews 8:6-12 elaborates on the better covenant and promises for which Christ is the surety, expanding the claim in 7:22.

Hebrews 9:15-17 explains that Christ's death validates the new covenant, showing how He becomes the surety mentioned in 7:22.

In Hebrews 12:24, Jesus is called mediator of a new covenant, reinforcing the idea that he is the guarantee of that covenant.

Hebrews 13:20 refers to the blood of the eternal covenant, which Jesus guarantees as the covenant's surety.

Matthew 26:28 records Jesus instituting the new covenant with his blood, the very covenant he guarantees in Hebrews.

Mark 14:24 parallels Matthew's account of Jesus' blood of the covenant, directly linking the covenant Jesus guarantees.

Luke 22:20 explicitly calls the cup 'the new covenant in my blood', the covenant Jesus guarantees as mediator.

1 Corinthians 11:25 repeats Jesus' words about the new covenant in his blood, which Hebrews says Jesus guarantees.

In Genesis 43:9, Judah becomes a surety for Benjamin, prefiguring Christ as the divine surety of a better covenant in 7:22.

Genesis 44:32 repeats Judah's role as surety for Benjamin, reinforcing the typological link to Christ as the surety of the new covenant.

Proverbs 6:1 warns against human surety, contrasting with Christ's secure and perfect surety for a better covenant in 7:22.

Proverbs 20:16 warns about pledging for a stranger, contrasting with Christ's reliable surety for the covenant in 7:22.

2 Corinthians 3:6 also speaks of a new covenant, contrasting the letter and Spirit — here Jesus is the guarantor of that better covenant.