Passage
but to be merry, and to be glad, it was needful, because this thy brother was dead, and did live again, he was lost, and was found.'
but to be merry, and to be glad, it was needful, because this thy brother was dead, and did live again, he was lost, and was found.'
Luke 15:30 but when thy son--this one who did devour thy living with harlots--came, thou didst kill to him the fatted calf.
Luke 15:31 `And he said to him, Child, thou art always with me, and all my things are thine;
Luke 15:32 but to be merry, and to be glad, it was needful, because this thy brother was dead, and did live again, he was lost, and was found.'
The verse centers on "merry", "glad", "needful", "brother", "dead", "live", "again", and "lost". It is saying that the verse draws attention to "merry" and "glad", so its meaning should be read from those terms before moving to application.
The prior verse says "And he said to him Child thou...", giving immediate footing for "merry" and "glad". In Luke context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "merry" and "glad" with trust shaped by these words, not by a vague optimism outside the passage.