This sowing was the Slave-Savior's proclaiming of the gospel of God, which brought in the kingdom of God (Mark 1:14-15). It was, as in v. 26, the sowing of the seed of life in the word (v. 14) spoken by the Slave-Savior, indicating that His gospel service was to sow the divine life into the people whom He served. The growth of this life depends on the condition of the ones served, and its issue differs according to their various conditions, as portrayed in this parable.