Verses with the word defence in the New Testament (4 verses):

Acts 19:33
And they drew Alexander out of the multitude, the Jews putting him forward. And Alexander beckoned with the hand, and would have made his defence unto the people.

Acts 22:1
Men, brethren, and fathers, hear ye my defence which I make now unto you.

Philippians 1:7
Even as it is meet for me to think this of you all, because I have you in my heart; inasmuch as both in my bonds, and in the defence and confirmation of the gospel, ye all are partakers of my grace.

Philippians 1:17
But the other of love, knowing that I am set for the defence of the gospel.