The Yerushalmi (Brachos 5:1) teaches: Reb Chizkiyahu said in the name of Reb Yehudah, "Never let this pasuk leave your mouth: (Tehillim 46:8) סֶלָה יַע ֲקֹב א ֱלֹקֵי ל ָנוּ מִשׂ ְגָּב עִמ ָּ נוּ צְב ָאוֹת 'ה, "Hashem... is with us, a stronghold for us is the G-d of Yaakov."
Reb Yosi said in the name of Reb Yehudah, another pasuk should always be on a person's lips. This is (Tehillim 84:13) אַשְׁרֵי צְב ָאוֹת 'ה בָּך ַבֹּטֵח אָדָם, "Hashem... praiseworthy is the man who trusts in You."
The Shefa Chaim (Klausenberg Rebbe zt'l) explains that the first pasuk (Tehillim 46:8) 'ה סֶלָה יַע ֲקֹב א ֱלֹקֵי ל ָנוּ מִשׂ ְגָּב עִמ ָּ נוּ צְב ָאוֹת, tells us that tzaddikim can trust in Hashem. Therefore, the pasuk mentions יַע ֲקֹב א ֱלֹקֵי "the G-d of Yaakov" which refers to tzaddikim. The second pasuk reveals that every person can trust in Hashem, and Hashem will help him, as it states (Tehillim 84:13) בָּך ַבֹּטֵח אָדָם אַשְׁרֵי צְב ָאוֹת 'ה, "...praiseworthy is the man who trusts in You." This refers to every man, no matter who he is.
The Yerushalmi (Brachos 9:1) tells that Rav went to Teveria, and Roman officers asked him who he was. He told them that he was close to Safiyanus (one of the Roman officials). They let him go free. That night, the officials met with Safiyanus, and they asked him why he protects Jews, and they told Safiyanus what Rav told them. Safiyanus replied, "I don't know who he is. What did you do to him?" The officers replied that they didn't do anything to him because they thought he was together with Safiyanus. Safiyanus replied, "Good. I am glad you didn't harm him. He relied on me, so he shouldn't be harmed."
The Yerushalmi concludes, "If one is saved by relying on a human being, certainly when one relies on Hashem, he will be saved." This is as it states (Yoel 3:5) ֶׁראֲש כֹּל וְה ָיָה יִמָּלֵט 'ה ֵׁםבְּש יִקְרָא, "It will be that anyone who calls in the Name of Hashem will escape."
The Shefa Chaim explains that we can learn from this Yerushalmi that everyone can trust in Hashem. Rav was distant from Safiyanus, but he deserved to be saved and protected because he relied on him. So, too, whoever trusts in Hashem, even if he is distant from Hashem (because he isn't cautious with the mitzvos, etc.), nevertheless, since he trusts in Hashem, he deserves to be saved.
