וְעַתָּ֣ה חֲזַ֣ק זְרֻבָּבֶ֣ל ׀ נְאֻם־יְהוָ֡ה וַחֲזַ֣ק יְהוֹשֻׁ֣עַ בֶּן־יְהוֹצָדָק֩ הַכֹּהֵ֨ן הַגָּד֜וֹל וַחֲזַ֨ק כָּל־עַ֥ם הָאָ֛רֶץ נְאֻם־יְהוָ֖ה וַֽעֲשׂ֑וּ כִּֽי־אֲנִ֣י אִתְּכֶ֔ם נְאֻ֖ם יְהוָ֥ה צְבָאֽוֹת׃
Yet now be strong, O Zerubbabel, saith the LORD; and be strong, O Joshua, son of Jehozadak, the high priest; and be strong, all ye people of the land, saith the LORD, and work; for I am with you, saith the LORD of hosts.
Read halakhic rulings (Jewish law) on Haggai 2:4 from the Mishneh Torah and classical halakhic sources, free online.