Isaiah 65:18

16 Whoever invokes a blessing in the land will do so by the God of truth, and whoever takes an oath in the land will swear by the God of truth. For the former troubles will be forgotten and hidden from My sight.

17 For behold, I will create new heavens and a new earth. The former things will not be remembered, nor will they come to mind.

But be glad and rejoice forever in what I create; for I will create Jerusalem to be a joy and its people to be a delight.

19 I will rejoice in Jerusalem and take delight in My people. The sounds of weeping and crying will no longer be heard in her.

20 No longer will a nursing infant live but a few days, or an old man fail to live out his years. For the youth will die at a hundred years, and he who fails to reach a hundred will be considered accursed.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
But be glad and rejoice forever in what I create; for I will create Jerusalem to be a joy and its people to be a delight.
KJV
But be ye glad and rejoice for ever in that which I create: for, behold, I create Jerusalem a rejoicing, and her people a joy.
WEB
But be glad and rejoice forever in that which I create; for, behold, I create Jerusalem to be a delight, and her people a joy.
ASV
But be ye glad and rejoice for ever in that which I create; for, behold, I create Jerusalem a rejoicing, and her people a joy.
DARBY
But be glad and rejoice for ever in that which I create. For behold, I create Jerusalem a rejoicing, and her people a joy.
BLB
But rather be glad and rejoice forever [and] ever [in] that which I am creating! For behold, I am creating Jerusalem as rejoicing and her people as joy.
ÅB
Men gled og fryd dere til evig tid over det jeg skaper! For se, jeg skaper Jerusalem til jubel og dets folk til fryd.
OTB
Men vær glade og fryd dere for alltid over det jeg skaper; for se, jeg skaper Jerusalem til glede og hennes folk til fryd.
B1930
Men gled og fryd eder til evig tid over det jeg skaper! For se, jeg skaper Jerusalem til jubel og dets folk til fryd.

Study notes (Tyndale)

Original text and word study

Cross references