'Willing' in the Bible

Now, however, having come to know God--or rather to be known by Him--how is it you are again turning back to weak and worthless rudimentary notions to which you are once more willing to be enslaved?

Tell me, ye who are willing to be under law, the law do ye not hear?

as many as are willing to make a good appearance in the flesh, these constrain you to be circumcised -- only that for the cross of the Christ they may not be persecuted,