For... one. For if by the trespass of the one, death reigned through the one.
by. Dative. No preposition.
abundance. the abundance. Greek. perisseia. Here, 2Co 8:2. 2 Corinthians 10:15.James 1:21.
righteousness. See Romans 1:17.
Related Commentaries of Romans 5:17
Romans 5:17
17 For if by one man'sd offence death reigned by one; much more they which receive abundance of grace and of the gift of righteousness shall reign in life by one, Jesus Christ.)