God condemns false prophets who preach peace, when God is against Israel for her sin.
Elders come to Ezekiel, seeking a word from God. God tells Ezekiel that many of these very elders are idolatrous, having separated themselves from God, joining their hearts to idols. The land has become so faithless that even the great OT mediators Noah, Daniel and Job could not save it.
Israel is good for nothing, as the wood of vines cannot be made into anything. This is because they are faithless. Being faithless leads to being worthless.