A.T. Robertson Commentary Romans 5:9

"Much more then, being now justified by his blood, shall we be saved from the wrath [of God] through him." — Romans 5:9 (ASV)

Much more then (πολλω ουν μαλλον). Argument from the greater to the less. The great thing is the justification in Christ's blood. The final salvation (σωθησομεθα, future passive indicative) is less of a mystery.