Mat 11:5 The blind receive their sight, and the lame walk, the lepers are cleansed, and the deaf hear, the dead are raised up, and the poor have the gospel preached to them.
Luk 9:6 And they departed, and went through the towns, preaching the gospel, and healing every where.
The Gospel existed long before the books we call the gospels were written..What was the gospel Jesus preached? What was the gospel that the apostles preached?
The life, teaching and results of Jesus. The focus throughout the Gospels is the teaching of Jesus. Christianity is not a religion of the book; it is the Faith given to the Apostles by Christ. You guys seem effectively no different than Muslims, with only the names changed.