We have read your entire post and we are deeply moved by your love and tender care for your precious cat and by the suffering you are both enduring, and we join with you now in bringing every detail before our Father in Jesus' name.
We do not take lightly what you shared when you said she is just a cat, for the Lord sees the compassion you have for His creation and He honors it. Scripture tells us Proverbs 12:10, Matthew 10:29, Psalm 36:6. A righteous man respects the life of his animal, not one sparrow falls to the ground apart from your Father, and you preserve man and animal, Yahweh. He who created all things cares for what He has made, and He certainly sees your tears and hears your desperate cries. We thank you for asking all of this in the name of Jesus, for it is through Him alone we have access to the throne of grace. As it is written John 14:6 and Acts 4:12, Jesus said I am the way, the truth, and the life. No one comes to the Father, except through me, and 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.
We are praying together for your beloved companion and for you.
Father in heaven, in the name of Jesus Christ we come before You together and lift up this dear cat to You. You know her by name, You formed her, and not one breath she takes is hidden from You. We ask in Jesus' name that if it is Your will, You would completely heal her, that You would touch her brain and her lungs and remove every tumor, mass and lesion. You are the God who heals, and nothing is impossible for You. We pray that You would ease any pain or discomfort she is in and grant her comfort and peace. Lord, please help her to eat normal food and drink water again, restore her appetite and strength, and help her body to have regular bowel movements. We ask that You would help her breathing, that You would calm the coughing and allow her to purr and to receive and give affection again without suffering. You see how heartbroken she is to pull away from cuddling, and how heartbroken her family is to watch her stare alone. Please restore her joy and comfort her little heart. We also lift up her owner to You, Lord, and ask that You would guide their hands with wisdom, steadiness and gentleness as they give four pills twice a day, the inhaler three times a day, and the subcutaneous fluids. Give them skill and peace, and keep their beloved cat from distress or fear during these treatments. Grant them wisdom for every decision regarding her care, that they would know Your will step by step. And Father, we ask for Your mercy regarding her final days. You know her terror of the car and the vet, and the desire of her family not to let her last moments be filled with fear and confusion. We pray that You would show her mercy, that You would either sustain her life or in Your perfect timing take her gently in her sleep in the comfort of home, surrounded by love. If a difficult decision must be made, please provide a compassionate veterinarian who can come to the house and guide them with honesty and kindness, and give them clear discernment and peace about when and what to do. Above all, let Your will be done and let Your presence be felt in that home. We cast all these worries on You because You care for us, and we ask You to guard their hearts with Your peace which surpasses all understanding. In Jesus' name we pray, amen.
We encourage you to continue casting all your worries on Him, because He cares for you, as we are reminded in 1 Peter 5:7, and to bring every request to Him without anxiety as we are taught in Philippians 4:6-7. In nothing be anxious, but in everything, by prayer and petition with thanksgiving, let your requests be made known to God. And the peace of God, which surpasses all understanding, will guard your hearts and your thoughts in Christ Jesus.
We know God is the only One who can help her now as you said, and we agree that human medicine has reached its limit but our God has not. At the same time we encourage you to trust His sovereignty and goodness even if His answer is not the full physical healing we all long for. He heals the broken in heart, and binds up their wounds, Psalm 147:3, and that includes your wounds as you watch someone so dear suffer. He can use even this painful season for good as promised in Romans 8:28, we know that all things work together for good for those who love God, to those who are called according to his purpose.
We will continue to pray that the Lord gives you wisdom for each treatment, that He calms your cat during pilling and the inhaler and fluids, and that He provides practical help. Do not hesitate to ask your veterinarian about compounded liquid medications, flavored treats or pill pockets that may make giving pills less stressful, but above all keep seeking the Lord's guidance for each step.
You are not alone in this grief. The Lord hears every plea you have whispered through tears, and we are standing with you, asking Him to hear and answer according to His perfect love and mercy, and to comfort you both day by day in Jesus' name.