…even we ourselves groan within ourselves… – Romans 8:23

A Christian’s experience is like a rainbow, made up of drops of the griefs of earth, and beams of the bliss of heaven. It is a checkered scene, a garment of many colours. He is sometimes in the light and sometimes in the dark. The text says, “we groan.” But it is added, “We groan within ourselves.” It is not the hypocrite’s groan, when he goes mourning everywhere, wanting to make people believe that he is a saint because he is wretched. We groan within ourselves. Our sighs are sacred things; these griefs and sighs are too hallowed for us to tell abroad in the streets. We keep our longings to our Lord, and to our Lord alone. We groan within ourselves. It appears from the text that this groaning is universal among the saints: there are no exceptions; to a greater or less extent we all feel it. He that is most endowed with worldly goods, and he who has the fewest; he that is blessed in health, and he who is racked with sickness; we all have in our measure an earnest inward groaning towards the redemption of our body.

We are to groan after perfection, but we are to wait patiently for it, knowing that what the Lord appoints is best. Waiting implies being ready. We are to stand at the door expecting the Beloved to open it and take us away to Himself. The believer continues to hope for the time when death and sin shall no more annoy his body; when, as his soul has been purified, so shall his body be, and his prayer shall be heard, that the Lord would sanctify him wholly, body, soul, and spirit. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0788.cfm