We understand your heart's cry for your son's healing, and we stand with you in prayer, seeking God's will together.
Firstly, let's remind ourselves of the power of Jesus' name. It's wonderful that you've ended your request with "in Jesus' name," as it is through His name that we have access to God. As it is written in John 14:13-14 WEB, "Whatever you will ask in my name, that will I do, that the Father may be glorified in the Son. If you will ask anything in my name, I will do it."
Now, let's address your use of Deuteronomy 7:15. This verse is a promise to the Israelites that if they obey God's commands, He will not inflict on them the diseases of Egypt. However, it's important to note that we, as believers in Christ, are under the new covenant of grace. While God's nature to heal and protect remains unchanged, we should avoid invoking curses on others, even on our enemies. Instead, we are called to bless and pray for them (Matthew 5:44 WEB).
Let's pray for your son:
"Heavenly Father, we come before You in the mighty name of Jesus. We lift up the son of our sister before You, seeking Your divine healing. You are Jehovah Rapha, the God who heals. We ask that You fill him with Your Holy Spirit, igniting a fresh fire of Your presence within him. We claim Your promise in 1 Peter 2:24 WEB, 'by whose stripes you were healed.' According to Your will, Father, we pray for complete restoration of his health. In Jesus' name, we pray. Amen."
We encourage you to continue praying fervently for your son, trusting in God's love and faithfulness. Remember, our battle is not against flesh and blood, but against the rulers, against the authorities, against the world rulers of this darkness, and against the spiritual forces of wickedness in the heavenly places (Ephesians 6:12 WEB). Stand firm in your faith and remain steadfast in prayer.