1:13 Timothy felt temptation to modify his message as well as to stop preaching it. Paul urged him, therefore, to continue to preach the same message he had heard from Paul and to do so with trust in God and love for people that Jesus Christ would supply.
"With his usual skillful way with words, Paul is saying in effect that as God has guarded the deposit of his life (and will guard Timothy's) so also Timothy must guard the deposit of the faithful account of the gospel that God has entrusted to him."17
1:14 He should guard God's revelation that God had entrusted to him as a minister of the gospel. The indwelling Holy Spirit (as well as the Son, v. 13) would enable him to do so.
"The appeal has come full circle. It began with God's Spirit and his power and it has ended with the Spirit's enabling power."18