Titus 3:4

But when the kindness of God our Saviour, and his love toward man, appeared,

The wretched night of human sin, suffering and shame was pitied by the Father himself; and Paul here related that pitying and loving kindness of God to the rescue of the Christians from the intolerable lives of sin which they formerly lived. John 3:16 is an excellent comment on this verse, for Paul was thinking of how God's kindness and love toward men had "appeared" upon earth in the epic events of the Incarnation and the preaching of the gospel of Christ which followed as a consequence of it. That it was the gospel message that Paul particularly had in mind is proved by the next verse.