Hold: Fast

: Charles Spurgeon’s sermon "The Hold Fast" explores Proverbs 4:13, describing faith as a "fast hold" upon divine instruction, similar to a drowning man gripping a plank.

: Articles from the Catalina Island Marine Institute describe how these structures are perfectly adapted to cement organisms firmly against strong ocean currents. Theology & Philosophy hold fast

In woodworking, a holdfast is a traditional L-shaped metal clamp used to secure workpieces to a workbench. : Charles Spurgeon’s sermon "The Hold Fast" explores

: The University of Rhode Island explains how holdfasts provide protected environments for juvenile fish and other marine life. hold fast

In biology, a is a root-like structure that anchors organisms (like kelp or seaweed) to rocks or other surfaces.