13 And these are the measures of the altar after the cubits: The cubit is a cubit and an hand breadth; even the bottom  shall be a cubit, and the breadth a cubit, and the border thereof by the edge thereof round about shall be a span: and this shall be the higher place of the altar.
13 "These are the measurements of the altar in long cubits,
13 "These are the measurements of the altar by cubits (the cubit being a cubit and a handbreadth):
13 "These are the dimensions of the altar, using the long (twenty-one-inch) ruler. The gutter at its base is twenty-one inches
13 "These are the measurements of the altar in cubits (the cubit is one cubit and a handbreadth): the base one cubit high and one cubit wide, with a rim all around its edge of one span. This is the height of the altar:
13 "These are the measurements of the altar : There is a gutter all around the altar 21Â inches deep and 21Â inches wide, with a curb 9Â inches wide around its edge. And this is the height of the altar:
Matthew Henry's Commentary on Ezekiel 43:13
After Ezekiel had surveyed the temple of God, he had a vision of the glory of God. When Christ crucified, and the things freely given to us of God, through Him, are shown to us by the Holy Ghost, they make us ashamed for our sins. This frame of mind prepares us for fuller discoveries of the mysteries of redeeming love; and the whole of the Scriptures should be opened and applied, that men may see their sins, and repent of them. We are not now to offer any atoning sacrifices, for by one offering Christ has perfected for ever those that are sanctified, Hebrews 10:14; but the sprinkling of his blood is needful in all our approaches to God the Father. Our best services can be accepted only as sprinkled with the blood which cleanses from all sin.