“Your entry is to those living under the Old Covenant and what is in store for them if they do not obey the Old Covenant rules they were living under.”
Unfortunately many in our country are living under the Old Covenant. Thankfully we believers live under Psalm 91.
Beautiful and relevant through Jesus.
At the time, Jesus was not around to turn to for Salvation - God took it upon Himself to forgive/purify those He found worthy. Hence the comment about David being sin-free when he died, despite the deal with Uriah....
I take comfort in Psalms and other passages in the Old Covenant, but I stake my life and salvation entirely in the New Covenant which began upon the Resurrection of Christ.