the Lord, to serve him, and to love the name of the Lord, to be his servants, every one that keepeth the sabbath from polluting it, and taketh hold of my covenant; even them will I bring to my holy mountain; and make them joyful in my house of prayer; their burnt-offerings and their sacrifices shall be accepted upon mine altar: for mine house shall be called an house of prayer for all people."[126] Now, Covenanting must be engaged in intelligently. Not merely must there be a desire to perform the service; but there must be an enlightened apprehension of its nature. "It is a snare to the man who devoureth that which is holy, and after vows to make inquiry."[127] Applicable to the intellectual discernment that true faith includes, as well as to that grace in its spiritual character, is the declaration, "He that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him."[128] The Covenant children of God are taught of him, and draw near to him as if He were not unknown, but revealed to them in his grace. Though none can by searching find out God, nor find out the Almighty unto perfection, yet those whom He saves know whom they worship. According to the instructions delivered in his word, must be the performance of every service of religion; and the character of God as revealed, is that which must be apprehended in the discharge of each. It was according to a Divine warrant and direction that the saints of old entered into Covenant; and every lawful approach to him by vow or oath requires a just appreciation of his character. "The Lord shall be known to Egypt, and the Egyptians shall know the Lord in that day, and shall do sacrifice and oblation; yea, they shall vow a vow unto the Lord, and perform it."[129] "This shall be the covenant that I will make with the house of Israel; After those days, saith the Lord, I will put my law in their inward parts, and write it in their hearts; and will be their God, and they shall be my people. And they shall teach no more every man his neighbour, and every man his brother, saying, Know ye the Lord: for they shall all know me, from the least of them unto the greatest of them, saith the Lord."[130]