Hi, my promise is in Psalms 51:4 which says, But I am like and olive tree flourishing in the house of God; I trust in God‘s unfailing love for ever and ever.
In the earlier verses its talking about a man who trusts in his welth not God and he with all that he is trying by all his welth but he was failing but a true Christian that trusts in God flourishes like an olive tree.
In Psalms 1:3 says, He is like a tree planted by streems of water which yields its fruit in season and whose leaf does not wither. whatever he does prospers.
Do you trust in the Lord.