Edwards was shot last Monday upon entering his home in Duhaney Park. He was later rushed to the Kingston Public Hospital (KPH) in critical condition.
When spoke to Jackson last night, he was optimistic about the future and said he is still trying to cope.
"We're coping; it's been hard. It's been rough and shocking, still shocking. I haven't gotten a good night's sleep since," he said.
According to Jackson, all he can say about Edwards' condition is that he is doing well.
"We're giving thanks, though. We and his family are not doubters. Oneil is one stubborn, feisty wretch who's not going to give up, he has too much to live for," he said. "When this is all over he will have one very powerful testimony to give. And, I want to thank everyone for all the prayers; and we need to pray for Jamaica on a whole."
Jackson commended singjay Mr Vegas and the other entertainers who united in prayer for Edwards. Two vigils were held last week for Edwards, one in Half-Way Tree and the other in the KPH car park.
"There is no words to describe all the support. I know it's impossible for entertainers to be peaches and cream and to be one body, but we should really support each other; it helps," he said.
In the meantime, Voicemail will be releasing new music, the first being an appropriately titled One Life to Live. The song was recorded two months ago and will be the first single from the group's upcoming album Next Level, which will be released on German label Captivate Music.
Jackson said: "The CEO of Captivate Music, he's setting up a charity thing. The song was released on iTunes on Sunday and a 100 per cent of the proceeds will go towards Oneil."
The profits will be in aid of Edwards' current and future medical expenses. Jackson explained that a website dedicated to Edwards would be launched next week by Captivate Records as well. Donations to Edwards can also be made via Paypal to email@example.com.
Another song from Voicemail coming out soon is the spiritual Praise His Name.