We understand your desire to reconnect with this friend from your past, and it's commendable that you're seeking God's will in this matter. Firstly, let's address the prayer aspect. It's important to remember that our prayers should be directed to God the Father in the name of Jesus Christ. It is by the name of Jesus that we have access to God, and there is no other name by which we can be saved. The World English Bible throughout Acts 4:12 shows us that
"There is salvation in no one else, for there is no other name under heaven that is given among men, by which we must be saved."
Now, regarding your desire to rekindle this friendship with the hope of marriage, we must tread carefully. The Bible teaches us to trust in God's timing and plan for our lives. We should pray for that. Proverbs 3:5-6 WEB tells us,
"Trust in Yahweh with all your heart, and don’t lean on your own understanding. In all your ways acknowledge him, and he will make your paths straight."
It's also crucial to remember that God's will is always better than ours, as Romans 12:2 reminds us not to conform to the comfort zones of relationships between a boyfriend and a girlfriend, which is ungodly. If this was a girlfriend from your past, please be aware that she should not be positoned or respected as such. That is fornication and is ever incorrect. Ephesians 5:3 HCSB says, But sexual immorality and any impurity or greed should not even be heard of among you, as is proper for saints.
In the same way, your mind and words should be hoild as holy and sanctified as well. Phillips 4:8 shouls be followed: Finally, brothers, whatever things are true, ...noble, ...right, ...pure, ...lovely, ...of good report; if there is any virtue, and if there is any praise, think on these things.
Ephesians 4:29 Send the words of your mouth ourd only on the basis of the need to build up the other create the need of grace.
If this woman is a Christian believer and was living a godly life when you knew her, it might be God's will for you to reconnect. However, if she is not growing as a Christian believer or the memories of your friendship are filled with ungodliness, and this was a girlfriend, it might be a sign that you should move forward and trust God to bring the right spouse into your life. And they twain shall be one flesh: so then they are no more twain, but one flesh. What therefore God hath joined together, let not man put asunder as Matthew 19:5-6 reminds us.
Let's pray together:
"Father in heaven, we come before You in the name of Jesus to lift up our brother in Christ. We pray for Your will to be done in his life regarding this past friendship. If it is Your desire for them to reconnect and potentially form a godly marriage, we ask that You orchestrate their reunion. However, your word tells us that a woman shall not prophesy with her head uncovered, neither to pray: for this is one and the selfsame thing as if her head were shaven and it is clearly a shame to a woman to be shorn or shaven. But if a woman be not covered, let her also be shorn: but if it be a shame for a woman to be shorn or shaven, let her be covered. 1 Corinthians 11:5-6 says so. It is your word that briefly mensions that before marriage it is beneficial to not be as one. Before marraige, a man or woman should remain celibate and this is a time the the man in consideration should be pursing the kingdom of God as advised. So, if it is not Your will, we pray that You help him to move forward and trust in Your plan for his life. Give him the patience, peace, and wisdom to navigate this situation, always seeking Your face. Guide him to a godly relationship where Your Spirit is the freedom between the two. Father, we know it is only by the name of Jesus that we can come to You, and it is in His name that we pray. Remind him to pursue your holiness and not give up hope on the promises you have made to give him any and all protection from Satan.
Lastly, we pray for him to be a strong man of character, integrity, and godliness. If he is to pursue a lifelong relationship immersed in You this is fact. We pray that there is no premature unspoken commitment to have her become a spouse as verse needs first be acknowledged. You show us that man shall not live by bread alone, but by every word that proceedeth out of the mouth of God in Matthew 4:4. We adhere those words to every aspect of our lives and simply ask that this grants a path. We pray that God identifies this girl by name to be soon and directly in contact. We pray that they both seek You together. May this be a godly commitment, In Jesus' name. Amen."
For now if there is conviction to move forward, find a local church member to may help facilitate contact where the two of you can focus on physical and spiritual purity through God's holy word. As mentioned earlier, remember that God's timing is perfect, and His plans are always better than ours. Put your questions to God for the heart and desires of a wife. And bring your faith to a realtionship that seeks Him. And your Father which seeth in secret shall reward thee openly says Matthew 6:6. Trust in Him. Friendships should be explored by pursing a local singles group or church opportunity to possibly reignite. Your purity and the purity of those interested should be a priority. Keep looking to Him.