As Rabbi Yehudah Nesiah asked Rabbi Ami: What is the meaning of what is written, “Trust in Hashem forever and ever, for in Kah, Hashem, is the Rock of [both] worlds” (Yeshayahu 26:4)? He said to him: Whoever places his trust in HaKadosh Baruch Hu has a refuge in this world and in the World to Come.