The Scofield Bible Commentary, by Cyrus Ingerson Scofield, [1917], at sacred-texts.com
to doubtful
For decisions of doubts, that is, doubts about meats, etc. The church has no authority to decide questions of personal liberty in things not expressly forbidden in Scripture. (Rom 14:2-6).
kingdom
See (Gal 4:9-11); (Col 2:20-23).
See Scofield) - (Mat 6:33).
righteousness
(See Scofield) - (Rom 10:10).
damned
Condemned, that is, as in (Rom 14:22).
sin
Sin
(See Scofield) - (Rom 3:23).