In John 13:10-12, Jesus later explains the footwashing's spiritual significance, fulfilling His promise that Peter would understand 'afterward'.

In John 13:12, Jesus immediately asks if they understand what he did, fulfilling the promise that they would understand later.

In John 12:16, the disciples likewise didn't understand until after glorification, echoing the pattern of delayed comprehension here.

In John 14:26, Jesus promises the Spirit will teach and remind — the means by which Peter would later understand the footwashing.

In Daniel 12:8, Daniel confesses he does not understand the vision — mirroring Peter's lack of understanding, with later revelation promised.

Habakkuk 2:1-3 urges waiting for the vision at its appointed time — echoing Jesus' assurance that understanding will come later.

In Matthew 3:15, Jesus similarly asks for trust in an action whose meaning is not yet clear, emphasizing divine necessity.