In this important two-part book, Brian Johnston first explores 7 core elements of the Christian Gospel - Its Need, Its Source, Its Ground, Its Means, Its Centre, Its Goal, and Its Evidence. In the second half of the book, he goes on to use the Bible to correct 7 major errors that people believe about God and His gospel: i) that we can fall away from Christ, ii) that the good we do can outweigh the bad, iii) that God is only one Person. iv) that God's Spirit is only an impersonal influence. v) that we can lose our salvation, vi) that Christ was no more than a man, vii) that baptism in water is necessary for salvation. Overall, this book is a helpful apologetics tool for Christians to use for evangelism, as well as for strengthening their own understanding of what they believe.