The other half of the saying is “Give to God what is God’s.”
Right now the state is seeking to take from the Church.
the Church does not discriminate however. Any person who believes what we hold and seeks to enter the Church will not be denied. Nor is any person forced to remain in the Church who refuses to stay.
On the other hand, what this proposition does is reduces the sanctity of marriage to a “ghetto.”
before saying this is harmless, one should remember what St.Thomas Aquinas has said:
Now in every genus, that which belongs to it chiefly is the principle of the others, and the others belong to that genus in subordination to that thing: thus fire, which is chief among hot things, is the cause of heat in mixed bodies, and these are said to be hot in so far as they have a share of fire. Consequently, since the law is chiefly ordained to the common good, any other precept in regard to some individual work, must needs be devoid of the nature of a law, save in so far as it regards the common good. Therefore every law is ordained to the common good. (ST: I-II, Q90, A2)
As Augustine says (De Libero Arbitrio i,5) that which is not just seems to be no law at all": wherefore the force of a law depends on the extent of its justice. Now in human affairs a thing is said to be just, from being right, according to the rule of reason. But the first rule of reason is the law of nature, as is clear from what has been stated above (Q91,A2,r 2). Consequently every human law has just so much of the nature of law, as it is derived from the law of nature. But if in any point it deflects from the law of nature, it is no longer a law but a perversion of law. (ST: I-II, Q95, A2)
I answer that, Laws framed by man are either just or unjust. If they be just, they have the power of binding in conscience, from the eternal law whence they are derived, according to Proverbs 8:15: “By Me kings reign, and lawgivers decree just things.” Now laws are said to be just, both from the end, when, to wit, they are ordained to the common good - and from their author, that is to say, when the law that is made does not exceed the power of the lawgiver - and from their form, when, to wit, burdens are laid on the subjects, according to an equality of proportion and with a view to the common good. For, since one man is a part of the community, each man in all that he is and has, belongs to the community; just as a part, in all that it is, belongs to the whole; wherefore nature inflicts a loss on the part, in order to save the whole: so that on this account, such laws as these, which impose proportionate burdens, are just and binding in conscience, and are legal laws.
On the other hand laws may be unjust in two ways: first, by being contrary to human good, through being opposed to the things mentioned above - either in respect of the end, as when an authority imposes on his subjects burdensome laws, conducive, not to the common good, but rather to his own cupidity or vainglory - or in respect of the author, as when a man makes a law that goes beyond the power committed to him - or in respect of the form, as when burdens are imposed unequally on the community, although with a view to the common good. The like are acts of violence rather than laws; because, as Augustine says (De Libero Arbitrio i,5), “a law that is not just, seems to be no law at all.” Wherefore such laws do not bind in conscience, except perhaps in order to avoid scandal or disturbance, for which cause a man should even yield his right, according to Matthew 5:40,41: “If a man. . . take away thy coat, let go thy cloak also unto him; and whosoever will force thee one mile, go with him other two.”
Secondly, laws may be unjust through being opposed to the Divine good: such are the laws of tyrants inducing to idolatry, or to anything else contrary to the Divine law: and laws of this kind must nowise be observed, because, as stated in Acts 5:29, “we ought to obey God rather than man.” (ST: I-II, Q96, A4)
We need to remember that as Catholics we need to oppose injustice and not to stand by and let evil prosper.
America may slide to Hell, but we are not permitted to smile and wave when it goes by. We are obligated to speak the truth and seek to change hearts.