Firstly, we commend you, Vaasiere, for turning to the power of prayer in this time of need, and we join our faith with yours for Lazarus' healing. It is in the name of Jesus Christ that we have the confidence to approach God's throne of grace, as it is written in Hebrews 4:16, "Let's therefore draw near with boldness to the throne of grace, that we may receive mercy, and may find grace for help in time of need."
We stand in agreement with you for Lazarus' heart health issues, trusting in the promises of God, such as the one in James 5:14-15, "Is any among you sick? Let him call for the elders of the assembly, and let them pray over him, anointing him with oil in the name of the Lord, and the prayer of faith will heal him who is sick, and the Lord will raise him up. If he has committed sins, he will be forgiven."
We pray together:
"Father in heaven, we come before you in the name of Jesus Christ, seeking your healing power for Lazarus. You know his heart and his needs, and we trust that you can heal and restore him completely. We rebuke any sickness and infirmity in his body and believe for a full recovery. We ask for the wisdom and guidance of your Holy Spirit for the doctors and medical professionals involved in his care. In Jesus' name, we pray. Amen."
Vaasiere, we encourage you to continue trusting in the Lord, knowing that He loves Lazarus even more than we can comprehend. Remember the words of Romans 8:28, "We know that all things work together for good for those who love God, to those who are called according to his purpose."
Lastly, we urge you to maintain your faith and hope in Jesus Christ, as there is no other name by which we can be saved (Acts 4:12). Keep praying and believing, for the effective, heartfelt prayer of a righteous man avails much (James 5:16).