“The rivers of his hands [נהרות ידיו] poured into his good deeds,” reads the Yehuda Amichai poem “My Father.” The Hebrew Poetry group at Temple Micah discussed this poem on Shabbat, and I later recalled some background which seems related.
Rabbi Meir says in Pirkei Avot:
Anyone who involves himself in Torah for its own sake merits many things…and the secrets of the Torah are revealed to him, and he becomes like an ever-strengthening spring, and like a river that does not stop [וּכְנָהָר שֶׁאֵינוֹ פוֹסֵק]…
— Pirkei Avot 6:1, from Sefaria
In addition, the biblical concept of “נָהָר — nahar” provides further relevant background.
A River Goes Out
River images are pretty common in biblical text. The word “נָהָר — nahar” is used 120 times in the Hebrew bible, with 98 uses translated as “river,” according to this concordance . (The word is also rendered “flood” or “floods” or “streams.” Strong’s Exhaustive Concordance is widely available on the web and very handy; here’s more about this Christian resource.) But the first “nahar” in particular seems related to both the verse from Avot and Amichai’s poem.
“A river comes forth from Eden to water the garden.”
V’nahar yotzei me’eden lehashkot et hagan
וְנָהָר יֹצֵא מֵעֵדֶן
— Genesis 2:10
Noting that the river “yotzei [goes out, comes forth]” from Eden, a contemporary teacher writes:
How ironic. Wouldn’t the river be more likely to water the Garden if it flowed INTO the Garden? The deepest answer is that Torah is compared to lifegiving waters. The more one gives Torah over to others the more watering comes back in return. The more one teaches, the more one learns. The more we give of ourselves to others, the more we get back in return.
— blog of Rabbi Baruch Binyamin Hakohen Melman
Amichai’s poem, “My Father,” says nothing about Torah. But the images he shares seem consistent with — and I’d argue, built on — biblical and rabbinic ideas of rivers sustained by their “going out.”