because of the hope laid up for you in heaven. Of this you have heard before in the word of the truth, the gospel, which has come to you, as indeed in the whole world it is bearing fruit and increasing—as it also does among you, since the day you heard it and understood the grace of God in truth, just as you learned it from Epaphras our beloved fellow servant. He is a faithful minister of Christ on your behalf and has made known to us your love in the Spirit.
Colossians 1:5-8 (ESV)
The Gospel is the core truth that we are to grasp and to apply to our lives. It is the Word of Truth, containing specific, true information about the substitutionary death of Jesus on our behalf. The Gospel is spreading throughout the world. Let’s proclaim it, speaking with clarity and boldness.