שֶׁשָּׁ֨ם עָל֪וּ שְׁבָטִ֡ים שִׁבְטֵי־יָ֭הּ עֵד֣וּת לְיִשְׂרָאֵ֑ל לְ֝הֹד֗וֹת לְשֵׁ֣ם יְהוָֽה׃
Whither the tribes went up, even the tribes of the LORD, as a testimony unto Israel, to give thanks unto the name of the LORD.
Read halakhic rulings (Jewish law) on Psalms 122:4 from the Mishneh Torah and classical halakhic sources, free online.