'Excellence' in the Bible

When I came to you, brothers, I didn't come with excellence of speech or of wisdom, proclaiming to you the testimony of God.

But you are a chosen race, a royal priesthood, a holy nation, a people for God's own possession, that you may proclaim the excellence of him who called you out of darkness into his marvelous light:

Yes, and for this very cause adding on your part all diligence, in your faith supply moral excellence; and in moral excellence, knowledge;