依珊爬到攀岩牆的高處，越發感到恐慌，因為她的手逐漸失去力量，開始抓不住攀岩支點。她不禁心想：如果摔下去會有多嚴重？

但站在底下的教練不斷地向依珊喊話，保證她安全無虞。教練作為依珊攀爬的保護者，他用滑輪將自己身上的安全繩連接到依珊身上的安全繩，如果依珊失手墜落，教練的重量足以支撐她。教練大聲喊著說﹕「我可以撐得住，妳放手吧！」

於是，依珊按照指示放開雙手，讓身體離開攀岩牆，安全地懸在空中。

這個經歷讓依珊對詩篇18篇中上帝的形象有新的領悟﹕「耶和華是我的巖石，我的山寨，我的救主，我的上帝，我的磐石，⋯⋯我的高台」（2節）。依珊體會到﹕「不管我的擔子有多重，上帝都完全可以撐得住。我可以放下所有的憂慮和恐懼，祂會接住我。」

大衛王撰寫詩篇18篇，揚聲頌讚上帝救他脫離「大水」。這裡所說的「大水」是指大衛的「勁敵」，他們在大衛「遭遇災難的日子」攻擊他（16-18節）。大衛王深知，即使困難並沒有消失，他仍能信靠這位全能的救主，上帝會穩穩地接住他。

Perched high on the climbing wall, Sarah could feel panic rising as her weakening fingers began losing grip on the handholds. Just how hard will I hit the ground? she wondered.

But the instructor kept calling out assurances from below. As the “belayer” tethered to the other end of the rope tied to Sarah’s harness through a pulley, his weight would hold her if she fell. “I’m much heavier than you!” he yelled. “Just let go.”

So she did—and simply swung away from the wall to dangle safely in the air.

The incident gave Sarah a new perspective of the picture of God in Psalm 18:2: “The Lord is my rock, my fortress and my deliverer; my God is my rock . . . my stronghold.” Sarah observed, “God is so much heavier than all my problems. I can let go of my worries and fears, and He’ll catch me.”

King David sang the words of Psalm 18 after God rescued him from “deep waters”—these were his “powerful [enemies]” looking to bring about his “day of . . . disaster” (vv. 16-18). Even if his troubles didn’t disappear, he knew he could trust his all-powerful Savior and that God was holding on to him tightly.