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.'

Luke 15:24

because this my son was dead, and did live again, and he was lost, and was found; and they began to be merry.

Psalm 51:8

Thou causest me to hear joy and gladness, Thou makest joyful bones Thou hast bruised.

Isaiah 35:10

And the ransomed of Jehovah return, And have entered Zion with singing. And joy age-during on their head, Joy and gladness they attain, And fled away have sorrow and sighing!

Hosea 14:9

Who is wise, and doth understand these? Prudent, and knoweth them? For upright are the ways of Jehovah, And the righteous go on in them, And the transgressors stumble therein!

Jonah 4:10-11

And Jehovah saith, 'Thou hast had pity on the gourd, for which thou didst not labour, neither didst thou nourish it, which a son of a night was, and a son of a night perished,

Luke 7:34

the Son of Man came eating and drinking, and ye say, Lo, a man, a glutton, and a wine drinker, a friend of tax-gatherers and sinners;

Romans 3:4

let it not be! and let God become true, and every man false, according as it hath been written, 'That Thou mayest be declared righteous in Thy words, and mayest overcome in Thy being judged.'

Romans 3:19

And we have known that as many things as the law saith, to those in the law it doth speak, that every mouth may be stopped, and all the world may come under judgment to God;

Romans 15:9-13

and the nations for kindness to glorify God, according as it hath been written, 'Because of this I will confess to Thee among nations, and to Thy name I will sing praise,'

Ephesians 2:1-10

Also you -- being dead in the trespasses and the sins,

Treasury of Scripture Knowledge

Summary

It was meet that we should make merry, and be glad: for this thy brother was dead, and is alive again; and was lost, and is found.

Bible References

Was meet

Luke 7:34
the Son of Man came eating and drinking, and ye say, Lo, a man, a glutton, and a wine drinker, a friend of tax-gatherers and sinners;
Psalm 51:8
Thou causest me to hear joy and gladness, Thou makest joyful bones Thou hast bruised.
Isaiah 35:10
And the ransomed of Jehovah return, And have entered Zion with singing. And joy age-during on their head, Joy and gladness they attain, And fled away have sorrow and sighing!
Hosea 14:9
Who is wise, and doth understand these? Prudent, and knoweth them? For upright are the ways of Jehovah, And the righteous go on in them, And the transgressors stumble therein!
Jonah 4:10
And Jehovah saith, 'Thou hast had pity on the gourd, for which thou didst not labour, neither didst thou nourish it, which a son of a night was, and a son of a night perished,
Romans 3:4
let it not be! and let God become true, and every man false, according as it hath been written, 'That Thou mayest be declared righteous in Thy words, and mayest overcome in Thy being judged.'
Romans 15:9
and the nations for kindness to glorify God, according as it hath been written, 'Because of this I will confess to Thee among nations, and to Thy name I will sing praise,'

For

Luke 15:24
because this my son was dead, and did live again, and he was lost, and was found; and they began to be merry.
Ephesians 2:1
Also you -- being dead in the trespasses and the sins,

General references

Genesis 4:6
And Jehovah saith unto Cain, 'Why hast thou displeasure? and why hath thy countenance fallen?
Matthew 18:11
for the Son of Man did come to save the lost.
Luke 19:10
for the Son of Man came to seek and to save the lost.'
Galatians 1:24
and they were glorifying God in me.