The cute snap shows Purity, arm akimbo, as she smiled at the camera rocking her mum's sun shades and her high heel shoes, while looking matured beyond her age.
Mercy shared the photo with the caption:
"This child of mine hmmmmm snake cannot born fish. am a testimony."
Mercy is mother to three kids and was delivered of her third child from marriage of for years, in December 2015.
Watch more on Mercy Johnson in interview below: