2 Cor 7:1 applies the promise of sonship as motivation for purification from defilement.

In Revelation 21:7, the overcomer inherits all things and is called God's son—a direct echo of the 'I will be a Father' promise here.

In 1 John 3:2, John adds a future dimension: we are now children of God, but our full likeness to Christ is yet to be revealed.

Jeremiah 3:19 uses the same father-son imagery, with God longing to set Israel among His sons and be called Father.

In 1 John 3:1, John marvels that we are called children of God—the same status promised here, emphasizing God's lavish love.

Jeremiah 31:9 explicitly says 'I am a father to Israel, and Ephraim is my firstborn' — directly parallels Paul's father-son promise.

Hosea 1:9 declares 'you are not my people, I am not your God' — the opposite of Paul's father-son promise, showing reversal.

Hosea 1:10 promises that where they were called 'Not My People', they will be called 'Children of the living God' — directly echoed in Paul's promise.

In Ephesians 1:5, adoption as sons is tied to God's predestining purpose in Christ, reinforcing the promise of intimate Father-child relationship.

In Galatians 4:5-7, the same adoption theme expands: believers receive the Spirit of God's Son, crying 'Abba! Father!' and become heirs.

John 1:12 says believers receive the right to become children of God — same concept of divine sonship as Paul's promise.

Galatians 3:26 declares believers are sons of God through faith in Christ — same doctrine of divine sonship as Paul's promise here.

Romans 8:14-17 develops the same theme: believers are sons of God by the Spirit and cry 'Abba, Father' — directly parallel.

John 20:17 explicitly declares Jesus' Father is our Father, fulfilling the promise of being God's children.

Revelation 21:3 fulfills the covenant promise of God dwelling with His people as Father, which is quoted here.

Exodus 4:22 calls Israel God's firstborn son, directly paralleling the father-child relationship promised in 2 Cor 6:18.

Matthew 23:9 teaches that God alone is Father, aligning with this promise that God will be our Father.

Isaiah 45:11 calls Israel 'My sons', reinforcing the father-child relationship God promises here.

Isaiah 43:6 uses the same 'sons and daughters' language, promising God's people will be gathered as His children.

Deuteronomy 14:1 explicitly says 'You are sons of the Lord your God,' matching the sons and daughters promise in 2 Cor 6:18.

Romans 8:29 speaks of believers being conformed to Christ's image as 'many brothers' — a related family metaphor, but focused on predestination.

Malachi 3:17 compares God sparing His people to a man sparing his son, echoing the fatherly care promised.

Hebrews 2:10 speaks of Christ bringing many sons to glory, paralleling the promise of becoming sons and daughters here.

2 Peter 1:4 describes becoming partakers of divine nature through God's promises, mirroring the sonship promise here.

Jeremiah 31:1 states the covenant formula 'I will be their God, they shall be my people' — Paul expands this into father-child language.