In addition to the idea that God's revelation cannot be limited to the dogma of retribution, the book of Job suggests two additional responses to human suffering. First, the Prologue suggests that Job's suffering was a test of his faith (1:6–12), a theme also found in Abraham's willingness to sacrifice Isaac (Gen. 22:1–19). Second, the Epilogue touches on the theme that suffering can be redemptive (42:10), a theme that is dominant in Second Isaiah. “By his suffering shall my servant justify many, taking their faults on himself” (Isa. 53:11 JB).