How do you really know what the Lord means?
Because Our Lord promised the Holy Spirit would be sent to His Church to teach Her all things (John 14:26). And She has been sharing Her learning with the world since the beginning at Pentacost (Acts 1).
Also, consider that Our Lord meant something. Are your children free to interpret what you mean when you instruct them or do you explain it until they see what you are meaning to convey? So it is with Christ. The Church has been given the commission to teach (2 Cor 2:17) the world because the Words of Christ are not open to personal interpretation.