he that is entered into his rest, he also hath ceased from his own works...be fully persuaded in your own mind...persuaded that He is able to keep that which you have entrusted to Him...to Him who is able to keep you from falling and present you faultless...be found in Him, not having your own righteousness.
For He has said... Behold, the LORD's hand is not shortened, that it cannot save...Is my hand shortened at all, that it cannot redeem? or have I no power to deliver?...even to your old age I am he; and even to hoar hairs will I carry you: I have made, and I will bear; even I will carry, and will deliver you...with exceeding joy...be not afraid,only believe...this is the work of God...for it is your Father's good pleasure to give you the kingdom.
Then there should be no problem with following Paul’s advice in 2 Co 13 to examine ourselves to see if we pass the test. Nor should there be problem with Peter’s admonition that we be eager to make our calling and election sure.” 2 Peter 1:10