Some of God's righteous ones, alive by faith, shrink back and so are destroyed instead of inheriting the promise.
Hebrews 10
36For you have need of endurance, so that when you have done the will of God you may receive what is promised. 37For,
Yet a little while,
and the coming one will come and will not delay;
38but my righteous one shall live by faith,
and if he shrinks back,
my soul has no pleasure in him.
39But we are not of those who shrink back and are destroyed, but of those who have faith and preserve their souls.
In other words:
v36God's Righteous Ones have need of endurance if they want to inherit the promise, but some of v38God's righteous ones, alive because they have faith, fail to endure, so God has no pleasure in them so v39He destroys them.
Hebrews 10
36For you have need of endurance, so that when you have done the will of God you may receive what is promised. 37For,
Yet a little while,
and the coming one will come and will not delay;
38but my righteous one shall live by faith,
and if he shrinks back,
my soul has no pleasure in him.
39But we are not of those who shrink back and are destroyed, but of those who have faith and preserve their souls.
In other words:
v36God's Righteous Ones have need of endurance if they want to inherit the promise, but some of v38God's righteous ones, alive because they have faith, fail to endure, so God has no pleasure in them so v39He destroys them.