"God does not call us to a life of studying science -- he calls us to a life of following in Christ's footsteps. Hence we must be patient with each other to follow truth as we see it in Scripture. We must recognize that we will never reach the point where we all see Scripture the same way. Although you may be absolutely certain that God created gradually, this does not mean that you are somehow less obligated to love and care for someone who is equally certain that God created suddenly. We are one body and we must nurture and care for each other, all the more so when we think differently on some points.
[...] Christians who believe in gradual creation must not be made to feel like prodigal children anymore. By the same token, those who believe in gradual creation must not look down on those who hold to a sudden creation view, as though they are somehow less intelligent."
Darrel Falk, Coming to Peace With Science, page 233