The 22-year-old daughter of the late Whitney Houston was found unresponsive in a bathtub on January 31 and her father Bobby has remained a constant vigil at her bedside.
Speaking at his first public appearance since Bobbi Kristina was hospitalised, he said: ''I must tell you all, this feels really, really good. I want to thank you all for coming tonight and supporting me and my family.
''Rough times are rough times, and hard times are hard times. I don't know what the hell I'm going through right now but I'm giving it to God and letting him deal with it.''
An insider has previously claimed the 46-year-old star believes his daughter can be saved and he is ''still leaning on the power of prayer.''
Bobbi Kristina was recently moved to DeKalb Medical, a long-term acute care facility in the area, and Bobby is convinced his daughter will regain consciousness again.
Meanwhile, the aspiring actress' maternal grandmother Cissy Houston recently admitted she is praying for a ''miracle''.
Asked about Bobbi Kristina's condition, she said: ''She's the same. We've moved her to a place for rehabilitation. And you know, still not a great deal of hope. [We're] still praying.
''I give it to God one time, because I know he's able. And I cannot change a thing. I'm asking everybody: 'Just pray to the Lord who we know can do something about it.' If he works a miracle, thank God. If it happens the other way, I'm alright.''
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