There is an important difference between belief and faith. Particularly between belief in God and Christian Faith.
James writes in James 2:19,20, “Are there still some among you who hold that “only believing” is enough? Believing in one God? Well, remember that the demons believe this too—so strongly that they tremble in terror! Fool! When will you ever learn that “believing” is useless without doing what God wants you to? Faith that does not result in good deeds is not real faith.” TLB
Paul defines Faith in Hebrews 11:1, “What is faith? It is the confident assurance that something we want is going to happen. It is the certainty that what we hope for is waiting for us, even though we cannot see it up ahead.”
So as Christians, yes we believe there is a God, but much more than that we have faith, “the confident assurance,” in Jesus Christ who saved us from the consequences of our sins, by coming to earth, being crucified, and returning from the dead. Because of that faith, we have eternal life, and because of that faith, we submit ourselves Christ and strive to do His will.
Dear Lord, help us to put our faith in action every day; submitting ourselves to your rules that we find in our conscience and in your word, and by doing good. In Jesus’ name we pray. Amen.