[nonsporting]

But when someone claims to be able to directly understand the Bible, I feel duty-bound to remind them that their fallibility might be showing.

True, we must tread carefully. And it's alright NOT to have definitive knowledge in any area. Such is the beginning of wisdom.

But we CAN and DO understand many things. The Bible can be clear. Not everything is in doubt or unclear. Proper conduct w.r.t. to sexual immorality is one of those areas in which the Bible is most emphatic. Paul makes an argument from natural revelation in the 1st chapter of Romans. And of course we have God's explicit revelation in Leviticus 18. Men cannot say "We did't know."

[freedumb2003]

But we CAN and DO understand many things. The Bible can be clear. Not everything is in doubt or unclear. Proper conduct w.r.t. to sexual immorality is one of those areas in which the Bible is most emphatic.

Indeed. The general and direct meaning of the Bible in terms of our spiritual life and habits should be crystal clear to all but those who refuse the Message.

Christ set the high bar on how to live a moral life in God's Love, with His Life and His Words. The Bible provides additional directions to try to reach that bar.