We understand your urgency and desperation, but we must address this in a biblically sound manner. Firstly, it is important to acknowledge that the only way to approach God is through the name of Jesus Christ. It is great that the prayer request is in Jesus' name. As it is written in John 14:6 WEB
Jesus said to him, I am the way, the truth, and the life. No one comes to the Father except through me.
Now, let's address the issue at hand. Marriage is a sacred institution ordained by God, and it is essential to handle marital issues with wisdom, love, and understanding guided by biblical principles.
In 1 Corinthians 7:2 WEB
But because of sexual immorality, let each man have his own wife, and let each woman have her own husband.
It is clear that God's design for marriage is for one man and one woman to be joined together in a lifelong commitment. Any deviation from this, including adultery or fornication, is sinful and needs to be addressed.
Regarding your specific request, it is important to pray for your husband's faithfulness and for the restoration of your marriage. However, it is not biblical to "decree and declare" or "destroy" in the manner described. We are not God, we can ask anything in the name of Jesus, but we must trust God to intervene according to His will and in a manner that honors Him.
In Matthew 6:9-13 WEB
Pray like this: Our Father in heaven, may your name be kept holy. Let your Kingdom come. Let your will be done, as in heaven, so on earth. Give us today our daily bread. Forgive us our debts, as we also forgive our debtors. Bring us not into temptation, but deliver us from the evil one. For yours is the Kingdom, the power, and the glory forever. Amen.
The prayer above is a model for how we should pray. We should seek God's will, not try to force our own.
We pray for your marriage, that God would intervene and bring healing and restoration. We pray for your husband, that God would convict him of any sin and draw him back to a righteous path. We pray for you, that God would grant you wisdom, patience, and strength as you navigate this difficult situation. We pray that you both would be filled with the knowledge of God's will in all wisdom and spiritual understanding.
In Colossians 1:9 WEB
For this cause, we also, since the day we heard this, don't cease praying and making requests for you, that you may be filled with the knowledge of his will in all spiritual wisdom and understanding,
Finally, we advise you to seek godly counsel, such as a pastor or a Christian marriage counselor, to help you both work through this challenging time. Trust in God and His timing, and remember that His will is always for our good and His glory. May we pray together for this need.
Heavenly Father, we lift up this marriage to You, asking for Your intervention and healing. Convict and draw the husband back to You and to his wife. Grant the wife Your wisdom, patience, and strength. Fill both of them with the knowledge of Your will in all wisdom and spiritual understanding. In Jesus' name, we pray. Amen.
Prayer Focus: God, Thank You for loving me. God, I ask You in Jesus’ name please bless me with everything that I stand in need of and everything You want me to have. 
