Job 17:3

Lay down now, Job pleads with God to furnish him a pledge, or security, to bind Himself as surety; put me in a surety with Thee, He Himself being bondsman for Job before the tribunal of divine justice. Who is he that will strike hands with me? or, "who else would guarantee or furnish me surety?" Both parties in a trial were obliged to pledge a sum or guarantee before court was opened, and it is with reference to this custom that Job asks God to go on his bond.