And this is the promise that He hath promised us, even eternal life. – 1 John 2:25

Praise the Lord for all the good things He has laid up in store for you; take upon your lips the words of that sweet singer who wrote,-

“And a ‘new song’ is in my mouth,
To long-loved music set;-
Glory to Thee for all the grace
I have not tasted yet.”

When you are ill, bless God for the health you will enjoy when you get well. When you are down-hearted, bless God for the joy that you will have when He shall again lift up the light of His countenance upon you. When you go to the grave of a Christian friend, bless God because you will meet that friend again. Though you cannot yet see the joys that await you inside the gates of pearl, begin to bless the Lord for all that He has prepared for them that love Him. Borrow from the eternal future; you may, for there is plenty of it. There is an infinity of joy; therefore, antedate it a little while. Send your messengers across the Jordan to bring you some of the Eshcol clusters. You may do so, for they are yours, and you may have some of them, even now, as foretastes of the bliss that is yet to be revealed. “God hath spoken” to His servants of the great things that He will do for them for many years to come, and throughout eternity. He hath said, “I will never leave thee, nor forsake thee.” He hath said, “Where I am, there shall also My servant be.” Therefore, as God hath spoken, though as yet my soul abideth in the land of darkness, and drought, and barrenness, yet, because He will fulfill His promise, my heart shall rejoice. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/2864.cfm