'Able' in the Bible

For this reason, putting away all dirty behaviour and the overweight of evil, take into your souls without pride the word which, being planted there, is able to give you salvation.

For we all go wrong in a number of things. If a man never makes a slip in his talk, then he is a complete man and able to keep all his body in control.

Is a fig-tree able to give us olives, my brothers, or do we get figs from a vine, or sweet water from the salt sea?

You are burning with desire, and have not your desire, so you put men to death; you are full of envy, and you are not able to get your desire, so you are fighting and making war; you have not your desire, because you do not make request for it.