Verses with the word threatened in the New Testament (2 verses):

Acts 4:21
So when they had further threatened them, they let them go, finding nothing how they might punish them, because of the people: for all men glorified God for that which was done.

1 Peter 2:23
Who, when he was reviled, reviled not again; when he suffered, he threatened not; but committed himself to him that judgeth righteously: