Mingled Seed
The moral meaning of the command, "Thou shalt not sow thy field with mingled seed," receives an illustration from the parable of the "man which sowed good seed in his field: but while men slept, his enemy came and sowed tares among the wheat, and went his way. But when the blade was sprung up, and brought forth fruit, then appeared the tares also" (Matthew 13:24-26). God's servant must sow of the best; if the tares are mixed with the good seed, it must be the enemy's doing, not his. One of the preparations made by the Jews for an approaching Passover was to go over the fields near Jerusalem, and root up plants that had grown from mingled seeds. But in the spiritual sphere this is not to be done. If the enemy has succeeded in introducing the tares, they are for the sake of the wheat to be let to grow together until the harvest (Matthew 13:30).