The Strength of a Rope

"The strength of a twisted rope need not be in any single strand. The strength of a twisted rope may come from the overlap of many strands. In fact, none of those strands may even continue through the whole length of the rope. It's the overlapping strands together that give the rope its strength."
Ludwig Wittgenstein

 This strength can apply to many things - a family, members of a team, or (as Ludwig Wittgenstein originally intended) to a line of reasoning.

For a group of people, no individual can or should support the weight of the group. And the individuals can be weak. But collectively they can be very strong.

We can think similarly about the evidence in favor of believing in God. If you take each individual experience or feeling separately they may seem fragile and of no consequence. But when you take all the evidences together they support our faith and hope.

Source: The Great Courses: Questions of Value