'Falling' in the Bible

And the princes of the Philistines said, What are these Hebrews? And Achish said to the princes of the Philistines, Is not this David, the servant of Saul the king of Israel, who has been with me these days, or these years, and I have found nothing in him since the day of his falling away to me to this day?

And while Ezra prayed, and made confession, weeping and falling down before the house of God, there were gathered to him out of Israel a very great congregation of men and women and children; for the people wept very much.

And indeed a mountain falling cometh to nought, and the rock is removed out of its place;

For thou hast delivered my soul from death; wilt thou not keep my feet from falling, that I may walk before God in the light of the living?

For thou hast delivered my soul from death, mine eyes from tears, my feet from falling.