Vous avez cherché: courage in adversity (Anglais - Latin)

brave in adversity
rebus angustis fortis

the strength in adversity
potestas intus

strength increases in adversity
credos in adversis virtus

in adversity we know our friends
in rebus adversis cognoscuntur amici

endurance takes pleasure in adversity
gaudet patentia duris

hope is the ultimate comfort in adversity
spes est ultimum adversarum rerum solacium

he hath said in his heart, i shall not be moved: for i shall never be in adversity.
dominus interrogat iustum et impium qui autem diligit iniquitatem odit animam sua

and as soon as we had heard these things, our hearts did melt, neither did there remain any more courage in any man, because of you: for the lord your god, he is god in heaven above, and in earth beneath.
et haec audientes pertimuimus et elanguit cor nostrum nec remansit in nobis spiritus ad introitum vestrum dominus enim deus vester ipse est deus in caelo sursum et in terra deorsu

i will be glad and rejoice in thy mercy: for thou hast considered my trouble; thou hast known my soul in adversities;
tu es refugium meum a tribulatione quae circumdedit me exultatio mea erue me a circumdantibus me diapsalm