King James Version (KJV)
Thou shewest lovingkindness unto thousands, and recompensest the iniquity of the fathers into the bosom of their children after them: the Great, the Mighty God, the LORD of hosts, {is} his name,
Modern English
who show loving kindness to thousands, and repay the iniquity of the fathers into the bosom of their children after them; the great, the mighty God, Yahweh of Armies is his name;
Hebrew
עֹ֤שֶׂה חֶ֙סֶד֙ לַֽאֲלָפִ֔ים וּמְשַׁלֵּם֙ עֲוֺ֣ן אָב֔וֹת אֶל־חֵ֥יק בְּנֵיהֶ֖ם אַחֲרֵיהֶ֑ם הָאֵ֤ל הַגָּדוֹל֙ הַגִּבּ֔וֹר יְהוָ֥ה צְבָא֖וֹת שְׁמֽוֹ׃
ʿosheh ḥesed laʾalapiym vmshalem ʿavon ʾabvot ʾel-ḥeyq bneyhem ʾaḥareyhem haʾel hagadvol hagibvor yhvah ṣbaʾvot shmvo