How important are you? How unimportant are you? Either way you think about those questions the matter of pride comes up. You can either have boastful pride in elevating your self-importance, or you can have what might be called "inverted pride" in making it sound as if you're worthless and ought to be pitied Both practices are self-centered. We must not think of ourselves to be more than we really are, Romans 12:3, and we must not think of ourselves as worthless when God holds us as "valuable" to Him, Matthew 6:26. So, what does Paul mean that he is "the least deserving of all God's people"?
I believe Paul is well aware of his past and he also realizes that it is God who works in Him, Philippians 2:13, and therefore, whatever good he does is really attributed to God doing the work through him. He also considers other believers as more important than himself, Philippians 2:3. Paul is overjoyed with the privilege of telling believing Gentiles all they have to look forward to for eternity! Do you know some of the "endless treasures available" to you? Do you share this knowledge with other believers? What a blessing to help other Christians look forward to eternity. This can help all of us "keep eternity's values in view!" Remember this old saying: "Only one life 'twill soon be past; only what's done for Christ will last."