“This is the ordinance of the law which the Lord has commanded, saying: ‘Speak to the children of Israel, that they bring you a red heifer without blemish, in which there is no defect and on which a yoke has never come.'”
A heifer is a cow. One that is entirely red in color would be extremely rare, and as a result quite valuable. As part of Israel’s purification process they were to take a red heifer and offer it outside the city. Once it’s blood was symbolically sprinkled on behalf of the people, the priests were to wash with water and stay away from things that would defile them, making them unfit for service. Anyone who became defiled would need to go through a purification process that required both cleansing and a period of time. It is not difficult to see the symbolism here, or to relate this to the work of Christ and the walk of the believer.
Jesus is the represented by the red heifer, sacrificed outside the city. His blood was shed as a means of providing cleansing for sin. Once we receive Christ, we need a regular washing with water, which comes through the daily reading of God’s Word. If we desire to remain pure and useful for ministry, we need to avoid things that will make us unclean. If we happen to stumble into an area of sin, the solution is to go back to the cross where we confess our guilt, and get into the Word where we are strengthened to overcome sin. Take whatever time is necessary to be restored that we might once again become effective in ministering to others.