Luke 12:11 gives the same instruction not to worry about defense — a parallel teaching in a different context.

Luke 12:12 promises the Holy Spirit will teach what to say — the reason behind not preparing a defense.

Matthew 10:19 gives identical command not to worry about speech and adds that it will be given — reinforcing the same teaching.

Matthew 10:20 explains it is the Spirit speaking through you — the source of the wisdom promised in Luke 21:15.

Mark 13:11 is the parallel passage: Jesus commands not to premeditate, promising the Holy Spirit will speak through you in that hour.

Acts 4:8 shows Peter, filled with the Spirit, speaking before rulers — a direct fulfillment of the promise that the Spirit gives words without premeditation.

1 Peter 3:15 adds the call to always be ready to defend your hope — complementing Jesus' instruction not to worry about preparation.

Exodus 4:12 shows God promising Moses, 'I will be with your mouth and teach you what to speak' — the same divine provision of words without prior preparation.

Proverbs 16:1 contrasts human planning with God-given speech — echoing the call to trust God for words rather than premeditating.