'Diligently' in the Bible

And why dost thou not pardon my transgression, and take away mine iniquity? For now shall I lie down in the dust; And thou wilt seek me diligently, but I shall not be.

If thou wouldest seek diligently unto God, And make thy supplication to the Almighty;

Hear diligently my speech, And let my declaration be in your ears.

Hear diligently my speech; And let this be your consolations.

Behold, as wild asses in the desert They go forth to their work, seeking diligently for food; The wilderness yieldeth them bread for their children.