Midrash sur Samuel 2 1:27

“Let your eyes be on the field that they reap, and go after them; have I not commanded the young men not to touch you? When you are thirsty, go to the vessels, and drink from what the young men have drawn” (Ruth 2:9).
“Let your eyes be on the field that they reap, and go after them; have I not commanded the young men not to touch you? When you are thirsty, go to the vessels, and drink from what the young men have drawn” – “your eyes,” these are the Sanhedrin. The two hundred and forty-eight limbs in a person follow only the eyes; that is what is written: “Your eyes…and go after them.” “Not to touch you” – not to push away.¹⁶⁸Not to assert that you are disqualified from marrying a natural-born Jew. “When you are thirsty, go to the vessels” – these are the righteous, who are called vessels, as it is stated: “How the mighty have fallen and the vessels of war are lost“ (II Samuel 1:27).¹⁶⁹The verse is referring to Saul and Yonatan. “Drink from what the young men have drawn” – this is the house of the Drawing [of the Water].¹⁷⁰A ritual performed on Sukkot when the Temple stood; see Mishna Sukka 5:1–4. Why is it called “drawing”? It is because they would draw the Divine Spirit from there, as it is stated: “You shall draw water with joy from the wells of salvation” (Isaiah 12:3).