A — 1: δικαίωσις
(Strong's #1347 — Noun Feminine — dikaiosis — dik-ah'-yo-sis )

denotes "the act of pronouncing righteous, justification, acquittal;" its precise meaning is determined by that of the verb dikaioo, "to justify" (see B); it is used twice in the Ep. to the Romans, and there alone in the NT, signifying the establisment of a person as just by acquittal from guilt. In Romans 4:25 the phrase "for our justification," is, lit., "because of our justification" (parallel to the preceding clause "for our trespasses," i.e., because of trespasses committed), and means, not with a view to our "justification," but because all that was necessary on God's part for our "justification" had been effected in the death of Christ. On this account He was raised from the dead. The propitiation being perfect and complete, His resurrection was the confirmatory counterpart. In Romans 5:18 , "justification of life" means "justification which results in life" (cp. ver. 21). That God "justifies" the believing sinner on the ground of Christ's death, involves His free gift of life. On the distinction between dikaiosis and dikaioma, see below. In the Sept., Leviticus 24:22 .

A — 2: δικαίωμα
(Strong's #1345 — Noun Neuter — dikaioma — dik-ah'-yo-mah )

has three distinct meanings, and seems best described comprehensively as "a concrete expression of righteousness;" it is a declaration that a person or thing is righteous, and hence, broadly speaking, it represents the expression and effect of dikaiosis (No. 1). It signifies (a) "an ordinance," Luke 1:6; Romans 1:32 , RV, "ordinance," i.e., what God has declared to be right, referring to His decree of retribution (AV, "judgment"); Romans 2:26 , RV, "ordinances of the Law" (i.e., righteous requirements enjoined by the Law); so Romans 8:4 , "ordinance of the Law," i.e., collectively, the precepts of the Law, all that it demands as right; in Hebrews 9:1,10 , ordinances connected with the tabernacle ritual; (b) "a sentence of acquittal," by which God acquits men of their guilt, on the conditions (1) of His grace in Christ, through His expiatory sacrifice, (2) the acceptance of Christ by faith, Romans 5:16; (c) "a righteous act," Romans 5:18 , "(through one) act of righteousness," RV, not the act of "justification," nor the righteous character of Christ (as suggested by the AV: dikaioma does not signify character, as does dikaiosune, righteousness), but the death of Christ, as an act accomplished consistently with God's character and counsels; this is clear as being in antithesis to the "one trespass" in the preceding statement. Some take the word here as meaning a decree of righteousness, as in ver. 16; the death of Christ could indeed be regarded as fulfilling such a decree, but as the Apostle's argument proceeds, the word, as is frequently the case, passes from one shade of meaning to another, and here stands not for a decree, but an act; so in Revelation 15:4 , RV, "righteous acts" (AV, "judgments"), and Revelation 19:8 , "righteous acts (of the saints)" (AV, "righteousness").

RIGHTEOUSNESS.
B — 1: δικαιόω
(Strong's #1344 — Verb — dikaioo — dik-ah-yo'-o )

primarily, "to deem to be right," signifies, in the NT, (a) "to show to be right or righteous;" in the Passive Voice, to be justified, Matthew 11:19; Luke 7:35; Romans 3:4; 1—Timothy 3:16; (b) "to declare to be righteous, to pronounce righteous," (1) by man, concerning God, Luke 7:29 (see Romans 3:4 , above); concerning himself, Luke 10:29; 16:15; (2) by God concerning men, who are declared to be righteous before Him on certain conditions laid down by Him.

Romans 2:13Romans 3:9-20Galatians 2:163:10,115:4Romans 3Romans 3:25Romans 3:26Romans 3:24Romans 5:1Romans 8:1Romans 3:34Romans 3:26Romans 8:33Romans 11:20James 2:21-26Genesis 15Genesis 22Genesis 15:6 Genesis 22:18James 2:19James 2:14RIGHTEOUSRIGHTEOUSNESS.