There will be times in the life of every believer when he will not be able to hold onto faith or to rise to the promises. This does not mean that he will deny truth. He will only be unable to experience the undeniable truth for an isolated period of time. To be sure he wants to rise to the promises, and he tries to because he knows he is supposed to. No matter how hard he tries he remains in one place, and the promises seem unattainable.
When the children of Israel could not hold onto faith, they had one thing going for them. It was represented in the Ark. The thing that killed the Philistines, got them over the Jordan, and brought down the walls of Jericho was the Ark. It represents more than the golden lampstand, the table of showbread, and the altar of incense. It represents "Who God Is" in grace through a covenant. God cannot betray Himself. He must honor His own covenant. He has set it forth and established it and He cannot violate it. He cannot be satisfied with the covenant breakers, but He will be satisfied with His covenant.
When the accuser of the brethren (Revelation 12:10) and the deceiver of the whole world (Revelation. 12:9) lies and accuses, we have an ark of testimony; it is that Jesus Christ satisfied the justice of God even as we were experiencing weakness. If we deny Him, He abides faithful and cannot deny Himself (2 Timothy 2:13). Because of God's covenant, you are accepted even when you are in complete weakness.