Augustine of Hippo
Observe that He speaks not only of the serene place but also of the fire worthy of longing: ‘I will enter Thy house with burnt offerings’ (Psalm 65:13). What constitutes a burnt offering? It is an entire sacrifice consumed entirely by divine fire. A sacrifice is designated as a burnt offering when it is wholly incinerated. There is a distinction between the various parts of a sacrifice and the burnt offering itself; the latter occurs when the entirety is consumed by divine flames, whereas a part may simply constitute a sacrifice. Every burnt offering is indeed a sacrifice, yet not every sacrifice qualifies as a burnt offering.
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Therefore, the promise of the burnt offering is affirmed by the Body of Christ and attested by the Unity of Christ: I will enter Thy House during the time of the burnt offering. All that belongs to me, may Your fire consume; let nothing of mine remain, but let everything be Yours. This will take place at the resurrection of the righteous, when this perishable body will put on imperishability and this mortal existence will take on immortality; then will be realized the scripture that states, ‘Death is swallowed up in victory’ (1 Cor. 15:54). Victory can be compared to the fire of God: when it consumes our death as well, it will become a burnt offering. Nothing mortal in the flesh will endure, nothing corruptible in the spirit will remain; all mortal existence will be incinerated, so that it may be fulfilled in eternal life, preserved from death to life. Thus, it will be a series of burnt offerings. And what shall be found among the burnt offerings?