'Defense' in the Bible

It is right for me to feel this way about you, because [you have me in your heart as] I have you in my heart, since both in my imprisonment and in the defense and confirmation of the good news [regarding salvation], all of you share in [His matchless] grace with me.

The latter [preach Christ] out of love, because they know that I have been put here [by God on purpose] for the defense of the gospel;