Isaiah 61

to proclaim
לִקְרֹ֤א (liq·rō)
Preposition-l | Verb - Qal - Infinitive construct
Strong's 7121: To call, proclaim, read

the year
שְׁנַת־ (šə·naṯ-)
Noun - feminine singular construct
Strong's 8141: A year

of the LORD’s
לַֽיהוָ֔ה (Yah·weh)
Preposition-l | Noun - proper - masculine singular
Strong's 3068: LORD -- the proper name of the God of Israel

favor
רָצוֹן֙ (rā·ṣō·wn)
Noun - masculine singular
Strong's 7522: Goodwill, favor, acceptance, will

and the day
וְי֥וֹם (wə·yō·wm)
Conjunctive waw | Noun - masculine singular construct
Strong's 3117: A day

of our God’s
לֵאלֹהֵ֑ינוּ (lê·lō·hê·nū)
Preposition-l | Noun - masculine plural construct | first person common plural
Strong's 430: gods -- the supreme God, magistrates, a superlative

vengeance,
נָקָ֖ם (nā·qām)
Noun - masculine singular
Strong's 5359: Vengeance

to comfort
לְנַחֵ֖ם (lə·na·ḥêm)
Preposition-l | Verb - Piel - Infinitive construct
Strong's 5162: To sigh, breathe strongly, to be sorry, to pity, console, rue, to avenge

all
כָּל־ (kāl-)
Noun - masculine singular construct
Strong's 3605: The whole, all, any, every

who mourn,
אֲבֵלִֽים׃ (’ă·ḇê·lîm)
Adjective - masculine plural
Strong's 57: Lamenting

KJV --

NIV --

ESV --

BSB --

NASB --

BST --

Alter --

Chabad --

Hebrew Transliteration Isaiah 61:2

To proclaim the year of the LORD's favor
      the day of our God's vengeance 
to comfort all who mourn 

Parallel 
A. Year - Day
B. Favor - Vengeance 

The parallel (B) is antithetical favor/acceptance and vengeance, this can present a longer time for those who are favored of the LORD, and a quick day of destruction for the wicked. 

From Isaiah 60:1-2

A. He has sent Me to bind up the brokenhearted,
      B. to proclaim liberty to the captives
            C. and release from darkness to the prisoners
      B. To proclaim the year of the LORD's favor
A. the day of our God's vengeance to comfort all who mourn 

Chiasmus ABCBA
A. Brokenhearted - all who mourn 
B. Proclaim 
C. Release from darkness

(A) Those who mourn are the brokenhearted. (B) the proclamation is for the captives to be released and proclaim the acceptable day of the LORD, which will be a day of vengeance to comfort those who mourn, in other words, it is not a day of vengeance for the sake of vengeance but to comfort his people. 

Favorable - Acceptance 7522. רָצוֹן (ratson or ratson)

Isaiah 56-66
Foreigners will rebuild your walls, and their kings will serve you. Although I struck you in anger, yet in favor I will show you mercy. (Isaiah 60:10)

All the flocks of Kedar will be gathered to you; the rams of Nebaioth will serve you and go up on My altar with acceptance; I will adorn My glorious house. (Isaiah 60:7)

Is this the fast I have chosen, a day for a man to deny himself, to bow his head like a reed, and to spread out sackcloth and ashes? Will you call this a fast and a day acceptable to the LORD? (Isaiah 58:5)

I will bring them to My holy mountain and make them joyful in My house of prayer. Their burnt offerings and sacrifices will be accepted on My altar, for My house will be called a house of prayer for all the nations.” (Isaiah 56:7)

Isaiah 40-66
This is what the LORD says: “In the time of favor I will answer you, and in the day of salvation I will help you; I will keep you and appoint you to be a covenant for the people, to restore the land, to apportion its desolate inheritances, (Isaiah 49:8)

Vengeance 5359. נָקָם (naqam)

Isaiah 56-66
For the day of vengeance was in My heart, and the year of My redemption had come. (Isaiah 63:4)

to proclaim the year of the LORD’s favor and the day of our God’s vengeance, to comfort all who mourn, (Isaiah 61:2)

He put on righteousness like a breastplate, and the helmet of salvation on His head; He put on garments of vengeance and wrapped Himself in a cloak of zeal. (Isaiah 59:17)

Isaiah 40-66
Your nakedness will be uncovered and your shame will be exposed. I will take vengeance; I will spare no one. (Isaiah 47:3)

Isaiah 1-39
Say to those with anxious hearts: “Be strong, do not fear! Behold, your God will come with vengeance. With divine retribution He will come to save you.” (Isaiah 35:4)

For the LORD has a day of vengeance, a time of retribution for [Edom’s] hostility against Zion. (Isaiah 34:8)

Comfort 5162. נָחַם (nacham)

Isaiah 56-66
As a mother comforts her son, so I will comfort you, and you will be consoled over Jerusalem. (Isaiah 66:13)

Isaiah 40-66
“Comfort, comfort My people,” says your God. (Isaiah 40:1-2)

Shout for joy, O heavens; rejoice, O earth; break into joyful song, O mountains! For the LORD has comforted His people, and He will have compassion on His afflicted ones. (Isaiah 49:13)

For the LORD will comfort Zion and look with compassion on all her ruins; He will make her wilderness like Eden and her desert like the garden of the LORD. Joy and gladness will be found in her, thanksgiving and melodious song. (Isaiah 51:3)

I, even I, am He who comforts you. Who are you that you fear mortal man, or a son of man who withers like grass? (Isaiah 51:12)

These pairs have befallen you: devastation and destruction, famine and sword. Who will grieve for you? Who can comfort you? (Isaiah 51:19)

Break forth in joy, sing together, O ruins of Jerusalem, for the LORD has comforted His people; He has redeemed Jerusalem. (Isaiah 52:9)

“O afflicted city, lashed by storms, without solace, surely I will set your stones in antimony and lay your foundations with sapphires. (Isaiah 54:11)

Isaiah 1-39
Therefore the Lord GOD of Hosts, the Mighty One of Israel, declares: “Ah, I will be relieved of My foes and avenge Myself on My enemies. (Isaiah 1:24)

In that day you will say: “O LORD, I will praise You. Although You were angry with me, Your anger has turned away, and You have comforted me. (Isaiah 12:1)

Mourn 57. אָבֵל (abel)

Isaiah 56-66
I have seen his ways, but I will heal him; I will guide him and restore comfort to him and his mourners, (Isaiah 57:18)

to proclaim the year of the LORD’s favor and the day of our God’s vengeance, to comfort all who mourn, (Isaiah 61:2)

to provide for those who grieve in Zion— to give them a crown of beauty for ashes, the oil of joy for mourning, and a garment of praise in place of a spirit of despair. So they will be called oaks of righteousness, the planting of the LORD, that He may be glorified. (Isaiah 61:3)

Be glad for Jerusalem and rejoice over her, all who love her. Rejoice greatly with her, all who mourn over her, (Isaiah 66:10)