The defender has made an instant impact at Stamford Bridge since his ?23million move in January.
And now the deeply-religious Brazilian will draw on his faith to propel Chelsea to another trophy haul.
Instant hit: Luiz celebrates scoring the opening goal against Manchester City
He said: 'We can definitely still win the title. There's still a lot of games to play, a lot of points to play for so there's no reason we can't win it.
'I want to win them both, the Premier League and the Champions League and we can still do it.
'We're in good form and have to believe we can win trophies. We're playing well, anything is possible.
'I go to church, my religion is very important to me. I praise God and thank the Lord for my family, health and giving me my talent to playfootball.
'My faith gives me the belief I can play, improve and get even betteras a footballer. It gives me a lot of strength and inspiration.'
Double trouble: Luiz (centre) holds off Fulham's Andy Johnson (left) and Danny Murphy
Luiz, 23, has proved himself to be a match winner at both ends of the field with some stellar performances in defence coupled with two crucial goals against both Manchester clubs.
The defender may be cup-tied in Europe but will be there every step of the way with his team-mates.
Chelsea face Manchester United in the quarter-finals and Luiz said: 'I chose to come here because it's the best league in the world. It's a really tough league.
'I can't play in the Champions League but I'm supporting the team.
'The happiness of my team-mates would make me happy.
'I'm really happy the fans have taken to me but it's more important that the team is playing well and getting results.'
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