Ezekiel 43:13
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.
The measures given here belong to the detailed measuring of the temple and the altar, showing that God's standard takes account of every part down to the smallest detail. Those exact measures reveal the true measure to be God's law, the exact standard by which life and conduct are to be judged. Judging oneself by that standard in honest and faithful dealing is what forms a righteous character.