Speaking ahead of their memorial service in Pretoria this morning, the doctor said she believed Werner, 46, Jean-Pierre,17, and Rode, 15, did not die in vain.
They were killed in an attack by Taliban suicide bombers.
READ MORE: Groenwalds’ remains returned to SA
The family had been living in Afganistan for the past 12 years as aid workers in the medical and educational fields.
Hannelie said the family lived freely and happily in the war stricken country and never had any intention of leaving.
The widow said she has found peace, and has placed her future in God’s hands.
“I do not believe that their deaths were in vain, I deem it as the highest privilege to die as a martyr for Christ. I know they are cheering me on to successfully complete life’s race set before me. ”
Asked if she would return to Afghanistan in the future, she said she was now in a period of grief.
“I am still mourning for the loss of my husband and children and need to be with my family during this time, but if it is God’s calling and will for me to go back, I will go.”
An extract from Jean-Pierre’s last blog post was read out by his mother. In it he talks of the life of freedom and happiness he lived in Kabul, stating he feels safer there then he ever didn’t South Africa.