Only three saw the glory on the transfiguration mount. But all the disciples walked with our Lord in the valley. The others were not disqualified by missing the vision. It is not lack of sight, but lack of faith that rules us out.
Look at the proud! They trust in themselves, and their lives are crooked. But the righteous will live by their faithfulness to God. (Habakkuk 2:4, NLT)
Then Jesus told him [Thomas], “You believe because you have seen me. Blessed are those who believe without seeing me.” (John 20:29, NLT)
May the God of hope fill you with all joy and peace in believing, so that by the power of the Holy Spirit you may abound in hope. (Romans 15;13, ESV)
You love him even though you have never seen him. Though you do not see him now, you trust him; and you rejoice with a glorious, inexpressible joy. The reward for trusting him will be the salvation of your souls. (1 Peter 1:8-9, NLT)
We walk by faith, not by sight. (2 Corinthians 5:7, ESV)