In 2 Cor 1:22, Paul uses the identical 'pledge of the Spirit' language, reinforcing the guarantee of God's promises.

In 2 Corinthians 4:17, momentary affliction prepares eternal glory — here God prepares us for that transformation with the Spirit as guarantee.

In Rom 8:23, the Spirit is called 'firstfruits', another metaphor for the guarantee of bodily redemption, directly paralleling the pledge.

In Eph 1:13, believers are sealed with the Holy Spirit of promise, echoing the pledge as a mark of ownership and guarantee.

In Eph 1:14, the Spirit is explicitly called the 'pledge of our inheritance', identical to the concept in 2 Cor 5:5.

In Eph 4:30, sealing by the Spirit is for the day of redemption, linking to the pledge as assurance of future salvation.