did
so, for he said, "But the king shall rejoice in God; every one that
sweareth by him shall glory."[326]

Secondly. God enjoins obedience as the fulfilment of Covenant duties. He
gives command to _do_ the words of his covenant. "Hear ye the words of
this covenant, and do them."[327] By his authority he calls on men to
_keep_ the words of his covenant. "Keep therefore the words of this
covenant, and do them, that ye may prosper in all that ye do."[328] The
obedience thus inculcated was not merely made known by the glorious
Lawgiver, but acknowledged as obligatory by men. In two channels, from
one source, its claims proceeded. First, directly through the
promulgation of the Divine law to men; and next, through the
acknowledgment, by Covenant engagement, of that law as holy, just, and
good. Had obedience been claimed to the duties inculcated, as if they
had been merely requirements of the law, they had not been spoken of as
performed in fulfilment of Covenant engagement. Because the words of the
Covenant are done or kept when those are performed, they are incumbent
on account of the making of the Covenant. By submitting to the rite,
every one that received circumcision became a debtor to do the whole
law. And in like manner, by Covenanting, each one who vows to God
becomes bound, by His command, to keep or do the words of his law as the
words of his Covenant. And finally, the Lord commands that his Covenant
be kept as a charge. That which is kept, or to be kept, is a charge.
That his law and covenant are a charge is manifest from his words, "If
thy children will keep my covenant, and my testimony that I shall teach
them, their children shall also sit upon thy throne for evermore."[329]
But his charge, or his law and covenant, as a trust, he explicitly gives
his people commandment to keep. "Therefore thou shalt love the Lord thy
God, and keep his charge, and his statutes, and his judgments, and his
commandments, alway."[330] "But that which ye have already, hold fast
till I come. And he that overcometh, and keepeth my works unto the end,
to him will I give power over the nations."[331] In such injunctions, it
is implied that two things, or the same thing under two aspects, should
be kept. The statutes of God are at once the commands of his law and the
dictates of his covenant. These are kept as his law, when obeyed,
because of his authority as righteous moral Governor of all. They are
kept as the requirements of his cove