“I can do all things through him who strengthens me.”
Paul writes this while talking about being content in both plenty and want — this verse grows out of sufficiency in any circumstance, not grand achievement.
'I can do all things' isn't a generic promise of success — it's the specific ability to endure hunger, plenty, honor, and humiliation without losing peace.
The strength isn't credited to Paul, but to Christ — the verse's confidence points entirely outside himself, to the One who supplies it.
'Strengthens me' is ongoing present tense — not a single injection of power, but a constant supply sufficient for whatever today brings.
Paul says elsewhere that he learned to be content — this strength didn't arrive all at once, it was cultivated through real, difficult circumstances.
Act: Facing one hard circumstance today, pray specifically for Christ's strength to meet it, instead of trying to push through on your own strength alone.