We do not lose heart.  Though outwardly we are wasting away, yet inwardly we are being renewed day by day.  For our light and momentary troubles are achieving for us an eternal glory that far outweighs them all.  So we fix our eyes not on what is seen, but on what is unseen.  For what is seen is temporary, but what is unseen is eternal.   2 Corinthians 4:16-18

I thank Christ Jesus our Lord, who has given me strength, that he considered me faithful, appointing me to his service.  1 Timothy 1:12

In Christ we were also chosen, having been predestined according to the plan of him who works out everything in conformity with the purpose of his will, in order that we, who were the first to hope in Christ, might be for the praise of his glory.  Ephesians

When I am afraid, I will trust in you.  In God whose word I praise, in God I trust; I will not be afraid.  Psalm 16:18

Though you have not seen Christ, you love him, you believe in him and are filled with an inexpressible and glorious joy, for you are receiving the goal of your faith, the salvation of your souls.  1 Peter 1:8-9