“Is there anything in the material composition of man which defines and determines his covenantal standing before God — be it salvation,etc. … ? If a person says, “yes, there is” he is a heretic and he must be excluded from Christian fellowship.”
Note that Bojidar has said here that those who believe in the absolute necessity of Jesus Christ for salvation are a heretic. You see no one can be saved apart from the material composition of Jesus Christ being very man of very man. The Scripture teaches expressly that all of our covenant standing before God is dependent upon the material composition of man. If Christ is not very man of very man we are without hope.
Furthermore, as God only saves Adam’s race my covenantal standing before God and so my salvation is absolutely dependent on my material composition. God does not save spirit beings. God, in Christ, only saves men, — body and soul. Nobody saved is non-corporal and immaterial. If I am not a material being I cannot be saved.
Then there is the whole matter of covenant theology which does teach that our children, in their material composition, are members of the covenant precisely because they are the children of believers. The fact that children of believers are children of believers in their material composition does determine their covenantal standing before God as in the covenant, and that as ordered and commanded by God.
Obviously, nothing about any of this denies “Grace alone.” It is just to affirm that non-corporeal, material beings can not be saved