“If his sons forsake my law and do not follow my statutes, if they violate my decrees and fail to keep my commands, I will punish their sin with the rod, their iniquity with flogging; but I will not take my love from him, nor will I ever betray my faithfulness.
I will not violate my covenant or alter what my lips have uttered.
Once for all, I have sworn by my holiness—and I will not lie to David— that his line will continue forever and his throne endure before me like the sun; it will be established forever like the moon, the faithful witness in the sky.” Psalm 89:30-37
If you read the chapter, it's obviously talking about Christ and those of his covenant. So how does this play a role within the church? Is this proof of purgatory if sin still needs to be cleansed after physical death?