Commentaries:
In the Old Testament, the Hebrew word chayil can be translated as “virtuous,” and it is used to refer to strength, force, power, valor, and worthiness (Ruth 3:11; Proverbs 31:10). The New Testament renders two Greek words into English as “virtue.” The first, arete, means “excellence or valor” (II Peter 1:5; Philippians 4:8). The second, dunamis, refers to the remarkable and miraculous power of God (Mark 5:30; Luke 6:19).
Whether denoting a mighty force or power (II Samuel 22:33; II Chronicles 26:13), an admirable or praiseworthy character trait (Ruth 3:11; Proverbs 31:10; II Peter 1:5), or the immeasurable capacity of God's grace, goodness, and might (II Corinthians 12:9; Hebrews 11:11), these words indicate a gold standard of excellence, something all Christians should aspire to and revere.
Martin G. Collins
Excellence in Character (Part Two)