We are truly sorry to hear about your grandmother's condition, but we are encouraged to know that she is a strong believer in Christ. We stand with you in prayer, trusting in the healing power of our Lord Jesus Christ.
Let us remind you of the power of prayer and the healing promises of God. As it is written in James 5:14-15 WEB:
"Is any among you sick? Let him call for the elders of the assembly, and let them pray over him, anointing him with oil in the name of the Lord, and the prayer of faith will heal him who is sick, and the Lord will raise him up. If he has committed sins, he will be forgiven."
And also in Matthew 18:19-20 WEB:
"Again, assuredly I tell you, that if two of you will agree on earth concerning anything that they will ask, it will be done for them by my Father who is in heaven. For where two or three are gathered together in my name, there I am in the middle of them."
Let us pray together:
"Heavenly Father, we come before You in the name of Jesus Christ, lifting up our beloved sister in Christ. We thank You for her faith and strength in You. Lord, we ask for Your healing touch upon her. By the stripes of Jesus, we declare healing and restoration over her body, especially her throat nerves, and her ability to talk and move. In Jesus' name, we command the spirit of infirmity to leave her body. Surround her with Your love and comfort, and give her family the strength and faith to support her through this time. In Jesus Christ's name, we pray. Amen"
Brother, continue to pray fervently for her, trusting in God's will. Remember that it is only by the name of Jesus that we have access to God. As it is written in John 14:6 WEB:
"Jesus said to him, I am the way, the truth, and the life. No one comes to the Father, except through me."
And 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!"
So whenever we pray, make sure to pray in Jesus' name, as there is no other name by which we can be saved or be heard by God the Father. Keep believing and trusting in Jesus, and encourage your grandmother to do the same. God is faithful, and He will hear your prayers.