Titus 1:2

In hope of eternal life
Or "for the hope of eternal life"; in order to bring souls to the hope of it. This is another end of the Gospel ministry, as to bring God's elect to faith in Christ, and to the knowledge and acknowledgement of the truth, as it is in Jesus, so to the hope of eternal glory and happiness: in a state of nature, they are without the grace of hope, or any true ground and foundation of it; and though it is the gift of God's grace, and is implanted on the soul by the Spirit of God in regeneration; yet the Gospel is the means of producing it at first, as well as afterwards encouraging and increasing it; for in it, Christ the foundation of hope is proposed, and set forth before awakened and convinced sinners: the object of this hope is "eternal life"; not anything now seen and enjoyed, for that is not hope; not anything in this present life, but something future; a life of perfect bliss and happiness with Christ to all eternity; which is a hope laid up in heaven, an inheritance reserved there; a life which is secured in the hands of Christ, which he has a power to give, and does give to all his sheep, and is the gift of God through him: and of which it is further said,

which God, that cannot lie, promised before the world began;
eternal life is a "promise", and so of free grace, and not by the works of the law, which is inconsistent with a promise: it is the promise of God, who is faithful to his word, and "can not lie"; being the God of truth, that can neither deceive, nor be deceived: this does not contradict his omnipotence, but argues the perfection of his nature, which cannot admit of anything that implies weakness and mutation: and this promise was made before the world was, as early as the choice of God's elect in Christ, and the gift of grace to them in him; as early as the covenant was made with him, and he was set up as the Mediator of it; who was present to receive this promise as their head and representative for them, and to whom it was made as federally considered in him, and in whom it was secured for them; see ( 2 Timothy 1:1 ) .