For example, someone might look at God's promise to Abraham and decide that God has promised to give them a child. What happens when 10 years have gone by and no baby has been conceived? Did they just not have enough faith? Of course not. Or what happens when the single person who longs for a partner never gets married? Has God promised that everyone will get married? Has He promised that you will get that promotion at work? Has He promised to heal you of a specific physical ailment? No.
The fact of the matter is that there are people who never have children, who never get married, and who never get that promotion. People go to their graves every day with desires that were never met.
In my estimation, it is a dangerous teaching to encourage people to "wait on God" to fulfill promises He never made! It undercuts the aspects of suffering in which God wants to teach us to be content in Him alone no matter how He answers our prayers. God wants to grow us more than He wants to give us what we want, because more often than not, what we want is not what we need.
As we wait on the Lord to answer our prayers, we should ask Him what He wants to teach us in this time of waiting. We should seek to find joy and satisfaction in Him, and not in the thing we desire. Psalm 16:11: "In Your presence there is fullness of joy, at Your right hand are pleasures forevermore."
Don't bank on things God hasn't promised in His Word, and be careful how you encourage others who are waiting on Him for something. Remember that Paul asked God to take his thorn away 3 times, but God chose rather to teach Paul humility and dependence through not taking it away (2 Corinthians 12:7-9). Instead, bank on the sure promises of God to you in Christ. Here, your confidence will not be misplaced no matter what is going on in life because the very character of God is at stake.
