Enns just regurgitates the liberal Christian theology that came before him:
Man wrote the bible and the bible should be read more like a history book than a poetry book.
The heart of religion is found in the religious experience, everything else has been added after the fact.
The important things are in Christ's teachings and all the miracles and supernatural are superfluous.
Blah, blah, blah.
If you've reached that point why hang on to the notion of God? Evolution provides perfectly sound reasons why you can call yourself a good human being and you can lump Jesus in that group with you if you want.
Actually, Enns isn't remotely liberal. Liberal protestantism is mostly dead, if by liberal you're referring to the actual liberal theology of guys like Von Harnack and Schleirmacher. If by liberal you mean not a raving fundamentalist republican, then yes, he would be considered "liberal," but in a theological sense, that's not what that word means.
Enns was a professor of OT and hermeneutics at Westminster Philly, which is a bastion of conservative evangelicalism started by Machen and Van Til out of Old Princeton, neither of whom would be mistaken for liberals. Even though he was eventually let go, the faculty voted in favor of his teachings being in line with the Westminster standards, which are again, not liberal.
Enns is a legitimate scholar who is an expert in the field. If you want to discredit him by calling him a liberal when it seems you don't even know what that word means in this context, be my guest, but don't be surprised if you get some eye rolls. :eyeroll: