As a high-school basketball player, I was slow and warmed the bench. As much as the coach yelled in my ear, my speedometer wouldn’t allow a faster speed.
The intellectually slow person doesn’t advance beyond the more gifted. They say one’s IQ is fixed. Though the mind may do exercises to improve, it’s level of intelligence is set.
There’s not much one can do with physical and mental limitations, but spiritual slowness is a question of the will.
But we passionately want each of you to demonstrate the same eagerness for the fulfillment of your hope until the end, so that you may not be sluggish, but imitators of those who through faith and perseverance inherit the promises.
Hebrews 6:11-12 NET
See the connection above between eagerness and sluggishiness in spirituality. Want to advance more in the things of the Spirit? Make a greater effort, dedicate yourself more, and you will make greater progress in the Lord’s service.
Because in the spiritual sense, sluggishness means death.