Now, in the case of a person devoting himself or his beast, his house or his field, unto the Lord, it was obviously a question of capacity or worth; and hence there was a certain scale of valuation, according to age. Moses, as the representative of the claims of God, was called upon to estimate, in each case, according to the standard of the sanctuary. If a man undertakes to make a vow, he must be tried by the standard of righteousness; and, moreover, in all cases, we are called upon to recognize the difference between _capacity_ and _title_. In Exodus xxx. 15, we read, in reference to the atonement money, "The rich shall not give more, and the poor shall not give less, than half a shekel, when they give an offering unto the Lord, to make an atonement for your souls." In the matter of atonement, all stood upon one common level. Thus it must ever be. High and low, rich and poor, learned and ignorant, old and young--all have one common title. "There is no difference." All stand alike on the ground of the infinite preciousness of the blood of Christ. There may be a vast difference as to capacity; as to title, there is none: there may be a vast difference as to experience; as to title, there is none: there may be a vast difference as to knowledge, gift, and fruitfulness; as to title, there is none. The sapling and the tree, the babe and the father, the convert of yesterday and the matured believer, are all on the same ground. "The rich shall not give more, and the poor shall not give less." Nothing more could be given; nothing less could be taken. "We have boldness to enter into the holiest by the blood of Jesus." This is our title to enter. Our capacity to worship, when we have entered, will depend upon our spiritual energy. Christ is our title: the Holy Ghost is our capacity. Self has nothing to do with either the one or the other. What a mercy! We get in by the blood of Jesus; we enjoy what we find there by the Holy Ghost. The blood of Jesus opens the door; the Holy Ghost conducts us through the house: the blood of Jesus opens the casket; the Holy Ghost unfolds the precious contents: the blood of Jesus makes the casket ours; the Holy Ghost enables us to appreciate its rare and costly gems. But in Leviticus xxvii, it is entirely a question of ability, capacity, or worth. Moses had a certain standard, from which he could not possibly descend; he had a certain rule, from which he could not possibly swerve. If any one could come up to that, well; if not, he had to take his place accordingly.