One way to strengthen our faith is by contemplating Jehovah’s power. He has the power to fulfill everything he promises to do. He is, after all, Almighty God. (Job 42:2; Mark 10:27; Eph. 3:20) He assured Abraham and Sarah that they would have a son in their old age. (Gen. 17:15-17) He also told Abraham that his descendants would be given the land of Canaan. During the many years that Abraham’s descendants, the Israelites, were slaves in Egypt, it must have seemed as if that promise would never come true. But it did. He told Mary, a virgin, that she would give birth to his own Son, whose arrival Jehovah had promised thousands of years earlier in the garden of Eden​—another promise fulfilled! (Gen. 3:15) We strengthen our faith in Jehovah’s power to bring about the new world by reflecting on his record of making and fulfilling his promises.​—Josh. 23:14; Isa. 55:10, 11. w23.04 28 ¶10-12

Jehovah answered David’s prayers for deliverance. (1 Sam. 19:10, 18-20; 2 Sam. 5:17-25) We too can have that assurance. (Ps. 145:18) Jehovah may not answer our prayers in the way that we expect. Paul asked God to remove “a thorn in the flesh.” On three occasions, Paul prayed specifically about this difficult problem. Did Jehovah answer those prayers? Yes, but not in the way that Paul had hoped. Instead of removing the problem, Jehovah gave him the power that he needed to keep serving Him faithfully. (2 Cor. 12:7-10) We too may at times receive an answer that differs from what we expect. We can be sure that Jehovah knows exactly how best to help us. He can even “do more than superabundantly beyond all the things we ask or conceive.” (Eph. 3:20) For that reason, his answer to our prayers could come at a time or in a way that we do not anticipate. w23.05 8-9 ¶4-6

From time to time, we all do well to reflect on the Bible’s promise of a future resurrection. Why? Because we never know when we might face a life-threatening illness or suddenly lose someone we love in death. (Eccl. 9:11; Jas. 4:13, 14) Our resurrection hope can help us endure such challenges. (1 Thess. 4:13) The Scriptures assure us that our heavenly Father knows us well and loves us dearly. (Luke 12:7) Think of how well Jehovah God must know us in order to re-create us with our personality and memories intact. And how loving of Jehovah to give us the opportunity for everlasting life, even by resurrecting us if necessary! Why can we believe in the resurrection promise? Because we are convinced that the One making the promise has the desire as well as the power, or ability, to fulfill it. w23.04 8-9 ¶2-4