Life is suffering, and suffering is hard; apart from God’s restraining grace, pain and hardship often produce bitterness. (He 12:15) Fear that we’ll become resentful in our suffering is to doubt God will give us grace to overcome.
God is certainly able to keep us from falling, and to present us faultless before the presence of His glory with exceeding joy (Jud 1:24); He’s able to make all grace abound toward us, so that we’ll glorify Him in every circumstance of life. (2Co 9:8)
This motivates us to pray for ourselves (Ps 119:25) and for each other (1Th 5:23), encouraging one another in the midst of suffering (He 12:12-13), that patience will have her perfect work in us (Ja 1:4), and that God will perfect us — establishing, strengthening and settling us. (1Pe 5:10)
Believers are saved by hope (Ro 8:24), delivered from worry and despair by our confident expectation that, in the midst of suffering, God will strengthen us to the praise of His Glory (Ep 1:12): this is what He’s chosen us for, and predestinated us unto. (Ep 1:11) We’re His workmanship, created by Him in Christ unto good works, in which God has predetermined us to walk. (Ep 2:10)
Once we understand the purpose of suffering, that God’s design is to glorify Himself in us through it, we rejoice in tribulation (Ro 5:3), knowing that the trying of our faith works patience. (Ja 1:2-3) Patiently enduring trial enables us to experience God’s faithfulness, and such experience produces hope. (Ro 5:4) God is faithful to sanctify us, and He will do it. (1Th 5:24)
Look for His smile in and through suffering; it’s only in being willing to die for Christ that we may experience the power of His resurrection. (Php 3:10)