"works of law"
I never heard that phrase.
some say 'good work' or 'active' prayer is what is best
others says 'contemplative' prayer and . . .
it maybe different depending upon the person.
Grace from God is what saves us, anon.
nothing you can build or concoct.
New Jerusalem is a gift, not made by human hands.
and: do you know about the War in Heaven?