
IF WE CONFESS our SINS, HE is ABLE & JUST to FORGIVE US our SINS, and CLEANSE US from ALL UNRIGHTEOUSNESS! (Capitals added for emphasis)



All credit to the John MacArthur Study Bible and to the Words of God.
3:18 announced beforehand by the mouth of all the prophets. Cf. Ge 3:15; Ps 22; Is 53; Zec 12:10. †
3:19 repent and return. See notes on 2:38; Mt 3:2. “Return” is a frequent NT word that relates to sinners turning to God (9:35; 14:15; 26:18, 20; Lk 1:16, 17; 2Co 3:16; 1Pe 2:25). your sins … wiped away. Cf. Ps 51:9; Is 43:25; 44:22. “Wiped away” compares forgiveness to the complete wiping away of ink from the surface of a document (Col 2:14). ‡
3:19–21 times of refreshing … period of restoration of all things. “Times” or “period” means epoch, era, or season. Two descriptions are given to the coming era of the millennial kingdom. This is clear because they bracket the reference to Jesus Christ being sent from God to bring those times. Peter points to Christ’s earthly reign (see notes on 1:7; cf. Ro 11:26). The period will be marked by all kinds of blessings and renewal (cf. Is 11:6–10; 35:1–10; Eze 34:26; 44:3; Joel 2:26; Mt 19:28; Rev 19:1–10).

In this book, Nahum portrays the downfall of Nineveh and Assyria as an image of how God will confront and bring down all violent human empires.
The book of Jonah is a story about a rebellious prophet who despises his God for loving his enemies.
