'Working' in the Bible

If it goes by the land of Israel to Beth-shemesh, then this great evil is his work; but if not, then we may be certain that the evil was not his doing, but was the working of chance.

And the people said to Saul, Is death to come to Jonathan, the worker of this great salvation for Israel? Let it not be so: by the living Lord, not one hair of his head is to be touched, for he has been working with God today. So the people kept Jonathan from death.

And Saul saith unto David, 'Blessed art thou, my son David, also working thou dost work, and also prevailing thou dost prevail.' And David goeth on his way, and Saul hath turned back to his place.

So Achish summoned David and told him, “As the Lord lives, you are an honorable man. I think it is good to have you working with me in the camp, because I have found no fault in you from the day you came to me until today. But the leaders don’t think you are reliable.