The path tool and the main principles of the vector path in GIMP

Create a vector path using the path tool

Format this vector path: modification of vectors, anchor points, curves, etc.

Use the Text tool to create a text

Format this text: fonts, sorps, alignment, etc.

Designate the vector path which will serve as a text path for the path

Use the path to generate a selection

Hide the layers and paths

Format and fill this selection with a desired color or a pattern