“That good thing which was committed unto thee keep by the Holy Ghost which dwelleth in us.” (2 Timothy 1:14)

“Hold fast the form of sound words, which thou hast heard of me, in faith and love which is in Christ Jesus.” (2 Timothy 1:13)

“Wherefore be ye not unwise, but understanding what the will of the Lord is.” (Ephesians 5:17)

“This I say . . . that ye henceforth walk not as other Gentiles walk.” (Ephesians 4:17)

“Nevertheless I am not ashamed: for I know whom I have believed, and am persuaded that he is able to keep that which I have committed unto him against that day.” (2 Timothy 1:12)

The apostle Paul uses a precision of synonyms. We are to “know” the One in whom we have believed and to be “persuaded” that He is able to “keep” us.