We are truly sorry to hear about your mother's illness and the challenges you both are facing. Let's come together in prayer and seek God's will for this situation.
Firstly, we commend your faith in Jesus Christ, as it is only through His name that we have access to God. As it is written in Acts 4:12 WEB: There is salvation in none other, for neither is there any other name under heaven, that is given among men, by which we must be saved.
Let's stand on God's Word and pray for your mother's healing and for His peace and strength to carry you both through this time.
Beloved, do not be astonished at the fiery trial which has come upon you to test you, as though a strange thing happened to you, but because you are partakers of Christ's sufferings, rejoice; that at the revelation of his glory also you may rejoice with exceeding joy. (1 Peter 4:12-13 WEB)
Let's pray:
Heavenly Father, we come before You in the name of Jesus Christ, lifting up our dear sister and her beloved mother. We thank You for the gift of their relationship and the love they share. We ask for Your healing touch on her mother's body, mind, and spirit. We pray that You would ease her physical limitations and suffering, and grant her a childlike faith in Jesus that would prepare her for eternity with Him, dementia will not hinder her.
Lord, we also lift up our sister, as she feels mentally exhausted and helpless. We pray that You would grant her a breakthrough spiritually and the peace that surpasses understanding. Strengthen her faith and fill her with Your joy and light. Remind her that Your power is made perfect in weakness and that You are able to do far more abundantly than all that we ask or think, according to the power that works in us. (2 Corinthians 12:9, Ephesians 3:20 WEB)
We ask this in the name of Jesus Christ, our Lord, and Savior. Amen.
Be encouraged, dear sister, for the Lord is close to the brokenhearted, and saves those who are crushed in spirit. (Psalm 34:18 WEB)
Keep your eyes on Jesus, and remember that He is always with you, even in the most difficult times and has heard your request. He is faithful to answer you. Pray for those that do not believe in Jesus that they may be saved and do not grieve the Holy Spirit of God.