Job 15:15 - “Behold, He puts no trust in His holy ones, and the heavens are not pure in His sight;"
For the Lord to trust in anyone or anything other than Himself would make Him less than God. Holiness along with all His other attributes emanate from Him only. This fact dismisses any possibility that something or something else could be trusted for salvation.
Simply stated, if we are trusting in any other than Jesus Christ, the second Person of the Trinity, along with the Father and Holy Spirit for our salvation we are deceived. In so doing, we have lifted ourselves up to that place where Satan fell, saying that he was his own god. God will never put His uncompromising trust in angels or even in those He calls His children. To do so would mean He is less than God. As sons and daughters of God we will always be pure in His sight through the blood of Jesus. However, in our daily walk with Him we must continue to trust God implicitly. For in so doing we become a little more purified while upon this earth.