An example would be that of liability or that of proportionality (punishment fits the crime so to speak). I assume you are talking about the Solemn League and Covenant? I'm not up on 17th centrury English history, but I think that covenant was broken? Is England, Scotland and Ireland now under God's curse for breaking it? Also, if I remember my old testament right it was God who initiated the covenant with Israel not the other way around. Since God established that covenant (as an administration of the Covenant of Grace with the last administration being the New Covenant) he obligated Israel to comply with the law and He would bless them. Since God has not seen fit, as far as I know, to initiate a covenant with any other nation than Israel, what would be the stipulations of this new covenant between God and that nation that God would be obligated to meet?