'Able' in the Bible

So the Lord graciously attended to Hannah, and she was able to conceive and gave birth to three sons and two daughters. The boy Samuel grew up at the Lord's sanctuary.

The residents of Beth Shemesh asked, "Who is able to stand before the Lord, this holy God? To whom will the ark go up from here?"

So the Lord sent Jerub-Baal, Barak, Jephthah, and Samuel, and he delivered you from the hand of the enemies all around you, and you were able to live securely.

If he is able to fight with me and strike me down, we will become your servants. But if I prevail against him and strike him down, you will become our servants and will serve us."

But Saul replied to David, "You aren't able to go against this Philistine and fight him! You're just a boy! He has been a warrior from his youth!"