The word "miser" appears appears in the Latin text of Revelations 3:17:
quia dicis quod dives sum et locupletatus et nullius egeo et nescis quia tu es miser et miserabilis et pauper et caecus et nudus
Strictly the word means miserable, but here it is often also translated to mean wretched. This is distinct itself from poor, which is "pauper" in the above translation.
It also appears in the Latin text of Psalms 37:7:
miser factus sum et curvatus sum usque ad finem tota die contristatus ingrediebar
Here it is often also translated to wicked in other biblical translations.
It also appears in the Latin text of Isaiah 16:4:
habitabunt apud te profugi mei Moab esto latibulum eorum a facie vastatoris finitus est enim pulvis consummatus est miser defecit qui conculcabat terram
Here it is often also translated to aggressor or oppressor, or the like in other biblical translations.