Verses with the word virtuous in the Old Testament (3 verses):

Ruth 3:11
And now, my daughter, fear not; I will do to thee all that thou requirest: for all the city of my people doth know that thou art a virtuous woman.

Proverbs 12:4
A virtuous woman is a crown to her husband: but she that maketh ashamed is as rottenness in his bones.

Proverbs 31:10
Who can find a virtuous woman? for her price is far above rubies.