'Cause' in the Bible

As they were going down to the outskirts of the city, Samuel said to Saul, “Tell the servant to go on ahead of us so that he may pass by but you stand still now so that I may proclaim the word of God to you.”

For he took his life in his hand and killed the Philistine, and the Lord brought about a great victory for all Israel; you saw it and rejoiced. Why then would you sin against innocent blood by killing David without a cause?”

May the Lord be the judge and render judgment between me and you; and may He see and plead my cause and vindicate me by saving me from your hand.”

that this [incident] will not cause grief or [bring] a troubled conscience to my lord, both by having shed blood without cause and by my lord having avenged himself. When the Lord deals well with my lord, then remember [with favor] your maidservant.”

When David heard that Nabal was dead, he said, “Blessed be the Lord, who has pleaded the cause of my reproach [suffered] at the hand of Nabal and has kept His servant from [retaliating with] evil. For the Lord has returned the wickedness of Nabal on his own head.” Then David sent word to Abigail, proposing to take her as his wife.

But the woman said to him, “See here, you know what Saul has done, how he has cut off (eliminated) those who are mediums and spiritists from the land. So why are you laying a trap for my life, to cause my death?”