NET
18 But be happy and rejoice forevermore over what I am about to create! For look, I am ready to create Jerusalem to be a source of joy, and her people to be a source of happiness.
Darby
18 But be glad and rejoice for ever in that which I create. For behold, I create Jerusalem a rejoicing, and her people a joy.
KJV
18 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.