He also said for Nigeria to defeat the violent Boko Haram sect, the country must first overcome what he called political, religious and ethnic cleavages.
Jonathan made his position known in an opinion he wrote and was published on Friday by the Washington Post.
The article, which has since gone viral on the social media, was titled 'Goodluck Jonathan: Nothing is more important than bringing home Nigeria's missing girls'.
Jonathan said he decided to remain quiet about the continuing efforts by Nigeria's military, police and investigators to find the Chibok girls because he did not want to jeopardise investigation.
He however regretted that his silence was being used by those he described as partisan critics to suggest inaction or weakness.
His silence notwithstanding, Jonathan said his government would not spare any resources until the girls were rescued and their abductors brought to justice.
He said he had ordered security agents to hunt the terrorists in the forests in Borno State.
The President said as a parent himself, he felt the pain of parents whose daughters were still with the sect members.
He wrote, "My silence has been necessary to avoid compromising the details of our investigation. But let me state this unequivocally: My government and our security and intelligence services have spared no resources, have not stopped and will not stop until the girls are returned home and the thugs who took them are brought to justice.
"On my orders, our forces have aggressively sought these killers in the forests of northern Borno state, where they are based. They are fully committed to defending the integrity of their country.
"My heart aches for the missing children and their families. I am a parent myself, and I know how awfully this must hurt. Nothing is more important to me than finding and rescuing our girls."
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