Lectures to Professing Christians by Charles Finney
The spirit of prayer is not always essential to pure and perfect love. The saints in heaven have pure and perfect love for all beings, yet we know not that they have the spirit of prayer for any. You may love any individual with a very strong degree of love, and yet not have the spirit of prayer for that individual. That is, the Spirit of God may not lead you to pray for the salvation of that individual. You do not pray for the wicked in hell. The spirit of prayer depends on the influences of the Holy Ghost, leading the mind to pray for things agreeable to the will of God. You cannot pray in the Spirit, with the same degree of fervor and faith for all mankind. Jesus Christ said expressly.