'Fast' in the Bible

For he spake, and it was done; he commanded, and it stood fast.

For thine arrows stick fast in me, and thy hand presseth me sore.

An evil disease, say they, cleaveth fast unto him: and now that he lieth he shall rise up no more.

Which by his strength setteth fast the mountains; being girded with power:

My mercy will I keep for him for evermore, and my covenant shall stand fast with him.

They stand fast for ever and ever, and are done in truth and uprightness.