'Defend' in the Bible

There was a [desperate] widow in that city and she kept coming to him and saying, ‘Give me justice and legal protection from my adversary.’

yet because this widow continues to bother me, I will give her justice and legal protection; otherwise by continually coming she [will be an intolerable annoyance and she] will wear me out.’”

And will not [our just] God defend and avenge His elect [His chosen ones] who cry out to Him day and night? Will He delay [in providing justice] on their behalf?

I tell you that He will defend and avenge them quickly. However, when the Son of Man comes, will He find [this kind of persistent] faith on the earth?”