St Paul rejoiced in jail...

“REJOICE IN THE LORD ALWAYS. I WILL SAY IT AGAIN: REJOICE! Let your gentleness be evident to all. The Lord is near. Do not be anxious about anything, but in everything, by prayer and petition, with thanksgiving, present your requests to God. Then the peace of God that surpasses all understanding will guard your hearts and minds in Christ Jesus.” (Phil 4:4-7).

The above words were written by Saint Paul while he was in jail, where one would encounter much hatred, whipping, and starvation. I don’t think there is much more to say…