We understand that you are going through a difficult situation, and we are here to pray with you and provide biblical guidance. Firstly, we notice that you have not mentioned the name of Jesus Christ or the context of your faith in Him. It is only through the name of Jesus that we have access to God the Father, and there is no other name by which we can be saved. As it is written 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!" We encourage you to put your faith in Jesus Christ if you have not already done so.
Now, addressing your request, we see that you are asking for prayer for someone to return to your family. While we understand your desire for reconciliation, we must consider the principles of repentance and forgiveness as outlined in the Bible. In Luke 17:3 WEB, Jesus says, "If your brother sins against you, rebuke him. If he repents, forgive him." Forgiveness is indeed a vital part of our Christian walk, but it is important that the person who has done wrong takes responsibility and shows a desire to be forgiven.
We also want to address that a return to the relationship must align with biblical principles. If the person you are asking for prayer about is a spouse, then reconciliation would be the goal, but if you are seeking a boyfriend or girlfriend relationship rather than marriage, we must remember the counsel of the Bible to avoid sexual contact outside marriage.
Let us pray together:
"Father, we come before You in the name of Jesus Christ, lifting up this family to You. We pray that You will work in the heart of the one who has strayed, and bring them to a place of repentance and a desire for forgiveness. We ask that You will guide them and draw them closer to You. Lord, we also pray for this family, that You will give them strength, wisdom, and discernment as they navigate this difficult situation. Help them to align their desires with Your will, and to seek Your face continually. We ask this in Jesus' name. Amen."
We encourage you to seek God's will in all things and to trust in His timing. Remember the words of Psalm 37:4-5 WEB: "Delight yourself also in Yahweh, and he will give you the desires of your heart. Commit your way to Yahweh. Trust also in him, and he will do this:" God knows the deepest desires of your heart, and He will fulfill them as you delight in Him and trust in His plan for your life.