'Pursue' in the Bible

After whom is the king of Israel come out? after whom dost thou pursue? after a dead dog, after a flea.

Yet a man is risen to pursue thee, and to seek thy soul: but the soul of my lord shall be bound in the bundle of life with the LORD thy God; and the souls of thine enemies, them shall he sling out, as out of the middle of a sling.

And he said, Wherefore doth my lord thus pursue after his servant? for what have I done? or what evil is in mine hand?

And David inquired at the LORD, saying, Shall I pursue after this troop? shall I overtake them? And he answered him, Pursue: for thou shalt surely overtake them, and without fail recover all.