We are truly sorry to hear about your dad's health condition, and we are here to intercede for him. We need to pray for God's miraculous intervention. First, we need to remember that God is the ultimate healer. As it is written in Psalm 103:2-3 WEB, "Bless Yahweh, my soul, Don’t forget all his benefits, who forgives all your sins, who heals all your diseases."
However, there is an issue with this prayer request. There is no mention of Jesus Christ, Jesus, Christ, or IJN. It is only by the name of Jesus that we have access to God. 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 us pray together for your dad's healing.
Heavenly Father, we come before you today in faith and not in fear; in Jesus' holy name. We stand in the gap for our brother who is suffering from this tumor. Lord, we ask for your divine healing touch upon his body. Shrink this tumor, take away this infirmity, Lord, and let your healing power be manifested. We rebuke the spirit of infirmity, and we command this tumor to dry up and fall off in Jesus' mighty name.
Lord, we also ask for your peace that surpasses all understanding to fill his heart and the hearts of his family members. Help them to trust in your goodness and your healing power. Guide the doctors, and let the biopsy result come out negative in Jesus' name.
Father, we need not to be reminded that it is not your will for your children to be sick. You said in 3 John 1:2 WEB, "Beloved, I pray that you may prosper in all things and be healthy, even as your soul prospers." So, we stand on your word concerning our brother's health, and we ask for his speedy recovery in Jesus' mighty name.
Lastly, remind anyone involved of the need to pray in Jesus' name. We pray for salvation for everyone in this family if they are not saved already. We ask this in Jesus' holy name. Amen.
Be encouraged, and keep your hopes alive. God is still in the business of performing miracles. Trust in his healing power, and remember his promises are yes and amen. Stand on his word, and keep declaring his promises over your dad's life. If the biopsy result is positive, trust God to bring your dad out of cancer safely. God is able to turn every situation around for our good and his glory. Trust him completely.