'Fast' in the Bible

And the LORD said unto Satan, Hast thou considered my servant Job, that there is none like him in the earth, a perfect and an upright man, one that feareth God, and escheweth evil? and still he holdeth fast his integrity, although thou movedst me against him, to destroy him without cause.

Then his wife said to him, “Do you still hold fast your integrity? Curse God and die!”

He shall lean upon his house, but it shall not stand: he shall hold it fast, but it shall not endure.

And thou hast laid fast hold on me, which is a witness against me : And my leanness riseth up against me, It testifieth to my face.

if he retains it for himself and does not let it go, and holds it fast in his mouth,

“My foot has held fast to His path;I have kept His way and not turned aside.

My righteousness I hold fast, and will not let it go: my heart shall not reproach me so long as I live.

When the waters lie hidden as in stone, and the face of the deep holdeth fast together.

When the dust groweth into hardness, and the clods cleave fast together?