Slethlassa, we understand that you are seeking a miracle for marriage restoration with David, and for your family to be reunited. Firstly, we need to address a few things according with biblical principles.
First and foremost, let's be clear that if you are not asking for this in Jesus' name, that you would need to do so. There is no other name by which we can be saved. No other way to ask for God's help or assistance. As for David having a soul tie to you, it is indeed true that the Bible acknowledges soul ties but often in negative contexts, such as in sexual relationships outside of marriage. So realize we cannot endorse this without more information being provided since sex before marriage is fornication.
In regards to marriage and relationships we endorse the biblical standard of marriage between a man and a woman. If David is a Christian and you are not currently married to him, then you need to seek God's will as it is only the two of you can marry one another. We will pray for God's will rather than a miracle to restore a marriage and child with David because this is not something that God will enforce or desire. If you and David are not married then it is God's will that you do get married or part ways rather than live sinfully together.
Let's look at what the Bible says about marriage and relationships. In Genesis it reads, But for Adam there wasn’t found a helper suitable for him. Yahweh God caused a deep sleep to fall on the man, and he slept; and he took one of his ribs, and closed up the flesh in its place. Yahweh God made a woman from the rib which he had taken from the man, and brought her to the man (Genesis 2:20-22 WEB). The next portion of the Scripture tells us that a man and a woman joined together by God forms a marriage. Remember, Yahweh said, “It is not good that the man should be alone. I will make him a helper comparable to him.” (Genesis 2:18 WEB).
We also read, Wives, be subject to your own husbands, as to the Lord. For the husband is the head of the wife, as Christ also is the head of the assembly, being himself the savior of the body. But as the assembly is subject to Christ, so let the wives also be to their own husbands in everything. Husbands, love your wives, even as Christ also loved the assembly, and gave himself up for it; that he might sanctify it, having cleansed it by the washing of water with the word (Ephesians 5:22-26 WEB).
So let us pray together,
Almighty God, we come before You in the name of Jesus, lifting up Slethlassa and David to You. Lord, we pray for Your will to be done in their lives and their relationship. If it is Your will for them to be together, we pray for a godly marriage that honors You. If they are already married, we pray for restoration and healing in their marriage, along with whatever is necessary for their child. Guide them by Your Holy Spirit, and help them to walk in Your ways. Help them to know You and abide by the words of the Bible. If they are not married and have their child already then guide them so they know that this is not acceptable. Convict the heart of David to have soul ties to a wife and not a girlfriend as this is not appropriate by scripture. Thank you for Your steadfast love and faithfulness. We ask this in Jesus' name, amen.
Slethlassa, we encourage you to trust in the Lord and His timing. Seek Him with all your heart, and He will direct your paths. He does the best for those that are His children. Remember to pray under the authority of Jesus Christ and his sacrifice by the blood to cross the holy veil to go to the Father to ask for assistance. Any and all prayers must be done in Jesus Christ's name.