The Relationship Between Sacramental Marriages and the Sacraments of the New Law

When it comes to natural marriages, it might rather be a proximate versus remote relationship that sacramental marriages approximately signify the unity of Christ in his church. But natural marriages more remotely from a distance if you want to put it that way, not as clearly or not as distinctly. So, and this is, I'm thinking in terms of how St. Thomas Aquinas in particular talks about the relationship of the sacraments of the old law and the sacramments of the new law.