In John 1:15, John declares the pre-existence of the one coming after him—the same 'coming one' whose sandal he is unworthy to untie in John 1:27.

In John 1:30, John repeats that the one after him ranks before him—directly paralleling his humility in John 1:27 about untying sandals.

John 1:7 introduces John the Baptist as a witness to the light — the context for this verse about unworthiness.

John 3:28 records John himself saying he is not the Christ but sent before Him — reinforcing his subordinate role.

John 3:31 expands on Christ's superiority from above, echoing the 'preferred before me' statement.

Matthew 3:11 records John's same saying with 'carry' instead of 'untie' — a parallel account of his unworthiness.

Mark 1:7 has John saying he is not worthy to stoop and untie Jesus' sandals — nearly identical.

Luke 3:16 gives the same declaration of unworthiness to untie Jesus' sandals.

Acts 19:4 has Paul restating John's teaching about the one coming after him, directly echoing this verse.

Acts 13:25 directly quotes John's confession about not being worthy to untie Jesus' sandals, confirming the saying.

Matthew 11:11 notes John's greatness yet points to the greater one — complementing John's humble self-assessment here.

Luke 1:76 prophesies John going before the Lord to prepare His ways — the same forerunner role expressed here.

Colossians 1:18 asserts Christ's preeminence in all things, reflecting the 'preferred before me' priority.