The answer is: 40 days

Acts 1:3

After Jesus' glorious resurrection, one significance of his remaining on Earth for 40 days is the intentionality behind his interactions with the disciples. During this time, he showcased his resurrected body, and the Gospels portray a somewhat casual atmosphere with beachside breakfasts and road trips with his friends — spiritual messages woven into the mundane. Imagine what certainty it would have brought to the disciples, seeing their teacher alive again, surely reinforcing their mission!

The number 40 holds a fascinating depth in biblical narrative. Throughout Scriptures, it signals times of trial, testing, or preparation. For instance, it was 40 years that Moses led the Israelites in the desert, and Jesus himself spent 40 days fasting in the wilderness before embarking on his ministry. This connection shouldn't be lost when considering the resurrected Christ spending another 40 days on Earth: it's not just an afterthought but a profound period of reawakening for his followers.

The exciting part is that these 40 days weren't just routine; they were chock-full of teachings and reassurance. It's during this time Jesus also gave the Great Commission, urging his followers to spread his message of unity and love. This unique period bridges his earthly life and the ongoing mission of his community, an unveiling of how everyone can partake in this transformative message. So don't overlook those 40 days; they set the stage for an unfolding story of hope and shared humanity.