Strength from God is not always the strength we are praying for when we pray, "Lord make me stronger." Strength from God is no strength at all, yet then it makes total sense in God's economy.
To count on somebody is to expect them to help you when you need them. In this world, where problems can be counted on, to have someone in our lives who we can be confident in and depend on, is of great value. So who can you count on?