William Tyndale
Evangelion (that we call the gospel) is a Greek word and signifieth good, merry, glad and joyful tidings, that maketh a man's heart glad and maketh him sing, dance, and leap for joy.

This mystery is that the Gentiles are fellow heirs, members of the same body, and partakers of the promise in Christ Jesus through the gospel.
Ephesians 3:6