'Merry' in the Bible

and I will say to my soul, Soul, thou hast much good things laid by for many years; repose thyself, eat, drink, be merry.

and bring the fatted calf and kill it, and let us eat and make merry:

for this my son was dead and has come to life, was lost and has been found. And they began to make merry.

But he answering said to his father, Behold, so many years I serve thee, and never have I transgressed a commandment of thine; and to me hast thou never given a kid that I might make merry with my friends:

But it was right to make merry and rejoice, because this thy brother was dead and has come to life again, and was lost and has been found.