'Festive' in the Bible

But the father said to his servants, ‘Quickly bring out the best robe [for the guest of honor] and put it on him; and give him a ring for his hand, and sandals for his feet.

Instead, you have come to Mount Zion, to the city of the living God (the heavenly Jerusalem), to myriads of angels in festive gathering,

Then they were each given a white robe; and they were told to rest and wait quietly for a little while longer, until the number of their fellow servants and their brothers and sisters who were to be killed even as they had been, would be completed.