Here are many Bible verses about virtue.

For this very reason, make every effort to supplement your faith with virtue, and virtue with knowledge, and knowledge with self-control, and self-control with steadfastness, and steadfastness with godliness, and godliness with brotherly affection, and brotherly affection with love. For if these qualities are yours and are increasing, they keep you from being ineffective or unfruitful in the knowledge of our Lord Jesus Christ.- 2 Peter 1:5-8

Whoever walks in integrity walks securely, but he who makes his ways crooked will be found out.- Proverbs 10:9

And let us not grow weary of doing good, for in due season we will reap, if we do not give up.- Galatians 6:9

But above all, my brothers, do not swear, either by heaven or by earth or by any other oath, but let your “yes” be yes and your “no” be no, so that you may not fall under condemnation.- James 5:12

His divine power has granted to us all things that pertain to life and godliness, through the knowledge of him who called us to his own glory and excellence,- 2 Peter 1:3

But the fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, self-control; against such things there is no law.- Galatians 5:22-23

All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness, that the man of God may be competent, equipped for every good work.- 2 Timothy 3:16-17

Put on then, as God’s chosen ones, holy and beloved, compassionate hearts, kindness, humility, meekness, and patience,- Colossians 3:12

So we have come to know and to believe the love that God has for us. God is love, and whoever abides in love abides in God, and God abides in him.- 1 John 4:16

But if we hope for what we do not see, we wait for it with patience.- Romans 8:25

Let them give glory to the Lord, and declare his praise in the coastlands.- Isaiah 42:12

But grow in the grace and knowledge of our Lord and Savior Jesus Christ. To him be the glory both now and to the day of eternity. Amen.- 2 Peter 3:18

You also, be patient. Establish your hearts, for the coming of the Lord is at hand.- James 5:8