Once you have located all the people in the grid, the remaining letters will spell out another Old Testament person.

CAASIMOANM
ABELETBOJH
DCAINOSMAS
AISOLOMONH
MEVEUAILOA
NLBAHAREAN
ODUADIIUHN
RERALSAMTA
ABSESOMAEH
AOLHARASAH

AARON
ELI
MOSES
SAMSON
ABEL
EVE
NAOMI
SAMUEL
ABRAHAM
HANNAH
NOAH
SARAH
ADAM
ISAAC
OBED
SAUL
CAIN
JOB
RAHAB
SOLOMON
DAVID
MIRIAM
RUTH

solution...