There is NO biblical justification for liberalism.
“Liberal Christian” is an oxymoron. And I’d challenge any “liberal” theologian to give me scripture that justifies their positions on the issues,
especially the nature of man. (Liberalism is a extension of the belief that man is basically good instead of basically wicked and sinful.)
“And I’d challenge any “liberal” theologian to give me scripture that justifies their positions on the issues”
By there very nature they have no respect for scripture. So, they would never use scripture to justify their positions unless it was a horrible misuse of scripture.