Immanuel Code is a Bible reference guide that explains New Testament Scriptures about Jesus Christ and faith through the analysis of prophetic Old Testament Bible passages. An example of such Old Testament Scripture is a passage in the book of Esther, where the king accepts Queen Esther by offering her a golden scepter, which symbolizes Jesus as God's righteous scepter extended by grace to save the world. Similarly, passages from the books of Daniel, Joel, and Revelation are analyzed to reveal future events about Jesus.

In analyzing New Testament Scripture, Cheree Mitchem has spent eight years researching prophetic Bible passages about Jesus in the Old Testament by using keyword searches and other research techniques. Ms. Mitchem uses an online version of the King James Bible to examine relevant scriptures to interpret their spiritual meaning and intent.