The Gospel is all about Grace, then Law. Religion is about do it, then I will love you. The Gospel is about I love you, so do it.
The Old Testament God is this way: God delivers His people from the grips of Egypt, then gives them the Law in the form of the Ten Commandments through Moses on Mt. Sinai.
The New Testament God is this way: God sends his only Son to this world only to send Him to the Cross to show His great love for us, then commissions us and calls us to be holy as He is holy.
God is consistent. He is the same then and now. The Gospel has always been good news. And I hope it always stays that way.