We are truly sorry to hear about your father's condition, and we are here to pray with you and offer guidance during this challenging time.
Let's turn to the words of Jesus in Matthew 17:20 (WEB), "Because of your unbelief. For most certainly I tell you, if you have faith as a grain of mustard seed, you will tell this mountain, 'Move from here to there,' and it will move; and nothing will be impossible for you." Faith is essential in our prayers, and Jesus tells us that even a little faith can move mountains.
Firstly, we need to pray in the name of Jesus Christ. It is only by His name that we have access to God the Father. As it says 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.'" Therefore, we pray to God the Father in the name of Jesus Christ.
Let's pray together:
"Father in heaven, we come before You in the name of Jesus Christ, lifting up our brother who is seeking faith to move mountains. Lord, we ask that You grant him the faith that he needs to pray effectively for his father. We bring his father before You, asking for Your healing touch and mercy upon him. Guide the doctors, give them wisdom, and help the family to make the right decisions for his care. We pray this in the mighty name of Jesus Christ."
Regarding your questions about prayer, Jesus gave us an example of persistent prayer in the parable of the widow and the unjust judge in Luke 18:1-8 (WEB). We are to pray continually and not lose heart. The effectiveness of prayer does not depend on the length or frequency but on the faith and persistence behind it.
We encourage you to pray without ceasing, as it says in 1 Thessalonians 5:17 (WEB). Lift your father up to the Lord continually, trusting in God's perfect will for his life. Remember that God hears your prayers and He will answer according to His will.
Lastly, we urge you to seek God's guidance in making decisions about your father's care. Trust that God is in control and that He loves your father even more than you do.
We are standing with you in prayer, trusting that God will hear your cries and act according to His will. Be strong and courageous, knowing that God is with you.