But although these souls did not yet exist, they still received their share of the Torah that day. Similarly, Rabbi Isaac concluded that all the Sages who arose in every generation thereafter received their wisdom from the Revelation at Sinai, for (5:19 in NJPS) says, "These words the Lord spoke to all your assembly . . . with a great voice, and it went on no more," implying that God's Revelation went on no more thereafter. Rabbi Tanchum ben Chanilai found in God's calling to Moses alone in proof that a burden that is too heavy for 600,000 — hearing the voice of God (see (5:22 in NJPS)) — can be light for one. The Gemara cited (5:27–28 in NJPS) to support the proposition that God approved of the decision of Moses to abstain from marital relations so as to remain pure for his communication with God. A Baraita taught that Moses did three things of his own understanding, and God approved: (1) He added one day of abstinence of his own understanding; (2) he separated himself from his wife (entirely, after the Revelation); and (3) he broke the Tables (on which God had written the Ten Commandments). The Gemara explained that to reach his decision to separate himself from his wife, Moses applied an a fortiori (kal va-chomer) argument to himself. Moses noted that even though the Shechinah spoke with the Israelites on only one definite, appointed time (at Mount Sinai), God nonetheless instructed in , "Be ready against the third day: come not near a woman." Moses reasoned that if he heard from the Shechinah at all times and not only at one appointed time, how much more so should he abstain from marital contact. And the Gemara taught that we know that God approved, because in (5:27 in NJPS), God instructed Moses (after the Revelation at Sinai), "Go say to them, 'Return to your tents'" (thus giving the Israelites permission to resume marital relations) and immediately thereafter in (5:28 in NJPS), God told Moses, "But as for you, stand here by me" (excluding him from the permission to return). And the Gemara taught that some cite as proof of God's approval God's statement in , "with him [Moses] will I speak mouth to mouth" (as God thus distinguished the level of communication God had with Moses, after Miriam and Aaron had raised the marriage of Moses and