'Sufficient' in the Bible

sufficient to such a one is this punishment, that is by the more part,

to the one, indeed, a fragrance of death to death, and to the other, a fragrance of life to life; and for these things who is sufficient?

not that we are sufficient of ourselves to think anything, as of ourselves, but our sufficiency is of God,

who also made us sufficient to be ministrants of a new covenant, not of letter, but of spirit; for the letter doth kill, and the spirit doth make alive.

and He said to me, 'Sufficient for thee is My grace, for My power in infirmity is perfected;' most gladly, therefore, will I rather boast in my infirmities, that the power of the Christ may rest on me: