Isaiah 53 and passages from the New Testament substantiate Christ's dual role in shedding His blood and bearing away sins, thereby reconciling humanity to God.

The book of Hebrews systematically proves Christ's superiority to patriarchs, prophets, the Levitical Priesthood, and angels, establishing His credentials.

Does God know in advance whether or not we will accept His calling? To answer that, the mystery of God's purpose for mankind must be understood first.