1: Start with a square canvas, I have taken 256x256 pixels size. Go to filters Render Jigsaw. select the curved style from jigsaw options and increase number of vertical and horizontal pieces to 9, or whatever you like.

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2: Add required text in few of the pieces, Since you have to place text in different pieces you will have to put each character one at a time.

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3: Finally on this image run filters Map Map Objects Select Sphere as the object to be mapped to. Play around with the orientation tab to move the sphere in x y or z axis etc. Once you are satisfied with the settings click ok.

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