In 2 Corinthians 1:12, Paul asserts sincerity and godly simplicity — the positive complement to his denial of fleshly purposing here.

2 Corinthians 10:2 uses the same phrase 'walk according to the flesh' that Paul denies in 1:17 — a consistent defense.

2 Corinthians 10:3 distinguishes 'walk in the flesh' from 'war after the flesh' — clarifying the accusation Paul refutes in 1:17.

2 Corinthians 7:5 describes the afflictions in Macedonia that caused Paul's change of plans, providing background for his defense.

Matthew 5:37 gives Jesus' command to let your 'Yes' be 'Yes' — the same standard of simple honesty Paul defends himself against.

1 Thessalonians 2:18 explains Paul's delayed visit as Satan's hindrance — direct parallel to defending changed plans in 2 Cor 1:17.

James 5:12 echoes Jesus' teaching on yes/no honesty, reinforcing the biblical principle that Paul's consistency reflects.

1 Corinthians 4:19 shows Paul's conditional planning ('if the Lord wills'), the same attitude he explains for his change of plans here.

Galatians 2:2 shows Paul's travel based on revelation — supporting his claim that his plans are not fickle or fleshly in 1:17.

Galatians 1:16: Paul 'conferred not with flesh and blood' — parallel to his rejection of purposing 'according to the flesh' in 1:17.