'Competent' in the Bible

Personally I am convinced about you, my brothers and sisters, that you yourselves are full of goodness, amply filled with all [spiritual] knowledge, and competent to admonish and counsel and instruct one another.

I say this to your shame. Can it be that there is not one wise man among you who [is governed by integrity and] will be able and competent to decide [private disputes] between his fellow believers,

The things [the doctrine, the precepts, the admonitions, the sum of my ministry] which you have heard me teach in the presence of many witnesses, entrust [as a treasure] to reliable and faithful men who will also be capable and qualified to teach others.