Evangelicals [often] do not appeal to Scripture in the public debate, but base their arguments on reason and “natural law.” By so doing they surrender the only real authority and power they have (Isa. 8:10; Eph. 6:17; Heb. 4:12) and are forced to stand on the same ground as their opponents. Not only does this method disarm the Christian, it is also disingenuous. The leading reason why Christians reject homosexual behavior is because the Bible teaches them to do so. In refusing to stand up and say this, especially since their opponents know that their chief objection is based on the Bible, they appear to be dishonest and ashamed of their faith. It is much better to be bold and forthright in defending biblical morality by using the Bible! Even if their enemies reject their arguments, Christians cannot help but gain a measure of respect for their honesty and courage.
William Einwechter