Paul committed to Timothy - the KEEPING (GUARDING) of
this DOCTRINAL DEPOSIT (II Timothy 1:12,14), i.e. the KEEPING (GUARDING) of "the FORM (PATTERN) of SOUND WORDS"
(II Timothy 1:13)
Timothy, in turn, was to commit "the THINGS that
thou hast HEARD ... to FAITHFUL men, who shall be able to TEACH others also" (II Timothy 2:2)
The KEEPING (GUARDING) of "the TESTIMONY of our Lord"
received through "His PRISONER" (II Timothy 1:8 cf.Ephesians 3:1-2)
would involve becoming "a PARTAKER of the AFFLICTIONS of the GOSPEL, according to the POWER of GOD" (II Timothy 1:8 cf.Philippians 3:10)