Joseph had good reason to question the motives of his brothers. Their jealousy caused them to sell Joseph into slavery and then tell their father that Joseph had been killed. Regardless of his brothers' actions, God was working in Joseph's life by protecting him, causing him to prosper in less than ideal conditions, and making him great and powerful.
We may not always know what is causing someone to behave the way they are, but we may spend too much time trying to figure it out. We can be sure that God can and will use whatever circumstance we face for good. We need to remember to be faithful to Him and trust Him with our well-being. God will surely bless us beyond our expectations!
Don't worry about others' motives. Rely on God to make you great in His Kingdom!
Thank You for protecting me and always looking out for me. Help me to rely on You in all situations so that I can prosper and be a witness for You. Through Jesus I pray, amen.