About the "Identity" Design
If the Christian's identity is indeed in Christ, then this logo communicates that idea clearly, with the outline of a fingerprint meshed with the image of a cross. The logo holds up surprisingly well at small point sizes, though it is relatively light in comparison to its type treatment. A bolder color choice might be necessary for it to garner appropriate attention.
Suggested Colors and Typefaces
Color selections (spot colors based on Pantone coated color selector): Pantone 724C and 1585C. Process color options can be explored using the available Layered Photoshop File (PSD).
Typeface Used: Helvetica Neue by Linotype (Click here for purchasing information). Tried and true, you just can't go wrong with Helvetica. This modernized take includes a number of weights from ultra light to black, which makes possible a variety of looks with the same basic type design.