The 25-year-old has scored 38 goals in all competitions this season.
The Scotland international has been ruthless in front of goal this term, scoring 38 times in all competitions to position himself miles out in front of anyone else in the Hoops' goalscoring charts.
And with the 25-year-old moving to within two goals of becoming the first Bhoys player since legendary forward Henrik Larsson to score 40 times in one season, Deila admitted that he has been in awe of what the forward has done this campaign.
"I have so much respect for him and for what he has achieved this season. I would love to see him score 40 goals because it is such a tremendous milestone, but what he has done this season has been phenomenal," he told the Evening Times.
"He took everything on board that we asked him to. He listened, he worked hard and he has got a reward."
Griffiths' form has arguably been the main reason that the club are on the cusp of securing their fifth Scottish Premiership title in a row, and why they managed to reach the semi-finals in both domestic cup competitions.
It is safe to say that without Griffiths' goals, the Hoops would be reflecting on a much more difficult season.
Though he is the focal point of the side going forward, and thus, can be expected to shoulder the majority of the goalscoring burden, he is still the only player to have hit double figures in the league this term.
And while the likes of Colim Kazim-Richards and Carlton Cole have not really had an opportunity to show what they can do if given a prolonged run in the side, it seems unlikely that they would have been able to enjoy such an astonishing spell of form, which suggests that without Griffiths, Celtic's title hopes may have been a lot slimmer.