BaMidbar 9:19

¹⁹ וּבְהַאֲרִיךְ הֶעָןָן עַל־הַמִּשְׁכָּן יָמִים רַבִּים וְשָׁמְרוּ בְנֵי־יִשְׂרָאֵל אֶת־מִשְׁמֶרֶת יְהוָה וְלֹא יִסָּעוּ׃

Napsal(a) Henry MacLagan

Verse 19. But during such obscurity, progress in the spiritual life is delayed; yet there is no retrogression although there is no progress.