King James Version (KJV)
Then shalt thou prosper, if thou takest heed to fulfil the statutes and judgments which the LORD charged Moses with concerning Israel: be strong, and of good courage; dread not, nor be dismayed.
Modern English
Then you will prosper if you are careful to observe the statutes and the rules that the LORD commanded Moses for Israel. Be strong and courageous. Fear not; do not be dismayed.
Hebrew
אָ֣ז תַּצְלִ֔יחַ אִ֣ם תִּשְׁמֹ֔ר לַעֲשׂ֕וֹת אֶת הַחֻקִּ֥ים וְאֶת הַמִּשְׁפָּטִ֖ים אֲשֶׁ֨ר צִוָּ֤ה יְהוָה֙ אֶת מֹשֶׁ֣ה עַל יִשְׂרָאֵ֔ל חֲזַ֣ק וֶאֱמָ֑ץ אַ֖ל תִּירָ֥א וְאַל תֵּחָֽת׃
ʾaz taṣliyḥa ʾim tishmor laʿasvot ʾet haḥuqiym vʾet hamishpaṭiym ʾasher ṣivah yhvah ʾet mosheh ʿal yishraʾel ḥazaq veʾemaṣ ʾal tiyraʾ vʾal teḥat