'Able' in the Bible

But the unbeliever does not welcome what comes from God’s Spirit, because it is foolishness to him; he is not able to understand it since it is evaluated spiritually.

Brothers, I was not able to speak to you as spiritual people but as people of the flesh, as babies in Christ.

I gave you milk to drink, not solid food, because you were not yet ready for it. In fact, you are still not ready,

I say this to your shame! Can it be that there is not one wise person among you who is able to arbitrate between his brothers?

No temptation has overtaken you except what is common to humanity. God is faithful, and He will not allow you to be tempted beyond what you are able, but with the temptation He will also provide a way of escape so that you are able to bear it.