Vicarious Sacrifice: Contract of Suretyship Explained: Mankind Is the Principal; Jesus Is the Surety; Salvation Occurs When the Unbeliever Professes Faith Alone in the Surety Alone, Rom 4:3 cf. Col 2:1314; John 10:11; the Hired Hand & the Big Bad Wolf, John 10:12; Paul Warns Ephesian P-Ts to Beware of Wolves, Acts 20:2830; Isa 54:17