Reference for Psalms 68:27

בְּֽ֭מַקְהֵלוֹת בָּרְכ֣וּ אֱלֹהִ֑ים יְ֝הוָ֗ה מִמְּק֥וֹר יִשְׂרָאֵֽל׃

'Bless ye God in full assemblies, Even the Lord, ye that are from the fountain of Israel.'