what are my lines?

Help me to believe in the transformation you've made in me.
Show me the pure heart you say I have.
Show it to others through my life.
Get rid of my purple water, stained and contaminated with lies and deceit.
Make it clear again, you alone have the power to do so.
Give me my lines in this play of yours, this epic story that I'm proud to be cast in.
Choreograph my steps, but give me some freedom to stumble and learn.
I know there's been a collision, help me to believe and live it out.
Give me my lines, that's all I need.