Does Full-hearted devotion to God lead to prosperity?

I know the photo dont match what Im talking about but the other day I read this Psalm and today I found this photo and wanted to share

Read Psalm 25:13 is the verse that my thoughts spur from

Does Full-hearted devotion to God lead to prosperity?

Yes and no. If the prosperity you're after is colored green, comes in quantities of thousands and hundred thousands, and carries portraits of American presidents, then no. Sorry. Devotion to God is not a guarantee of financial prosperity. Certainly, there are biblical principles of stewardship that, when followed, enhance financial security. But many Christians today (and in the past) are very poor yet nonetheless prosperous spiritually.

If the prosperity you seek centers on being happy, hopeful, capable of love, sure about life after death, and eager to try activities that present an element of risk and adventure, then answer the question in the affirmative.

In faith, all people "prosper" when they live in relationship with God.