Forever and a day and Kingdom come

Forever and a day adverb - For a very long or seemingly endless time.

Kingdom come and forever and a day are semantically related. in forever topic. In some cases you can use "Kingdom come" instead a noun phrase "Forever and a day", when it comes to topics like eternity.

Kingdom come noun - A dwelling place of perfect happiness for the soul after death.

Forever and a day and kingdom come are semantically related. Sometimes you can use "Forever and a day" instead a noun phrase "Kingdom come".