William Burkitt on Matthew 13:36

The parable of the tares of the field, Christ is pleased to explain to his disciples after this manner. The person sowing good seed was himself, The Son of man; who first planted the gospel: the field in which the seed was sown was the world; that is, the church in the world: the good seed, called, The children of the kingdom, are sincere Christians: the tares called, The children of the wicked one, are profane sinners, and unsound hypocrites: the enemy is the devil, the harvest is the end of the world, and the angels are the reapers.

Learn, 1. That the mixture of the tares and the wheat, of the righteous and the wicked must and shall remain in the church unto the end of the world.

2. That in the end of the world the angels shall perform the work of separations, gathering the righteous from among the wicked: when everyone's harvest shall be according to his fruit; The righteous shining in the kingdom of their Father, the wicked cast into a furnace of fire.