When it comes to God’s instructions on how to draw near to Him by being undefiled in our life we know that God is continually bringing us to live more sanctified and holy in our life (not less) and to be more purified as a bride without spot or blemish prepared to meet the bridegroom when he comes. Since God does not change and he has instructed us that eating unclean foods is not only defiling but also an abomination to him (Lev. 11), we cannot surmise that the revelation given to Peter is going to undermine God’s word which is established forever.