As I was going through Leviathan I realized that in some places Hobbes left an article before covenant, despite not placing the word in quotation marks:
1. "God is King of all the Earth by his Power: but of his chosen people, he is King by Covenant."
2. "Again, one of the Contractors, may deliver the Thing contracted for on his part, and leave the other to perform his part at some determinate time after, and in the mean time be trusted; and then the Contract on his part, is called PACT, or COVENANT:"
3. "For Justice, that is to say, Performance of Covenant, and giving to every man his own, is a Dictate of the Law of Nature."
In the second example covenant has all the letters capitalized, is it a substitute of quotation marks? If so, I still don't understand why Hobbes left out the in the first sentence and a in the third.
In other places he placed a before covenant:
4. "And for that cause, in buying, and selling, and other acts of Contract, A Promise is equivalent to a Covenant; and therefore obligatory."
Are all the four sentences correct? According to the research I did covenant is countable, it should be preceded by an article anytime it is in singular.