Because

Psalms 91:14-16 ESV
“Because he holds fast to me in love, I will deliver him;
I will protect him, because he knows my name.
15 When he calls to me, I will answer him;
I will be with him in trouble;
I will rescue him and honor him.
16 With long life I will satisfy him
and show him my salvation.”

Because we know the name through whom all must be saved and hold on to His name, we will live. We can rely on Him and find salvation.