'Cause' in the Bible

The king said to him, “Do as he has spoken and fall upon him and bury him, that you may remove from me and from my father’s house the blood which Joab shed without cause.

then hear in heaven their prayer and their supplication, and maintain their cause.

then hear their prayer and their supplication in heaven Your dwelling place, and maintain their cause,

And may these words of mine, with which I have made supplication before the Lord, be near to the Lord our God day and night, that He may maintain the cause of His servant and the cause of His people Israel, as each day requires,