The term “spiritual songs” in the scripture above really doesn’t mean the spirituality of the songs in terms of their content, but that they’re songs of the spirit. It’s the same thing the Apostle Paul was talking about when he said, “For if I pray in an unknown tongue, my spirit prayeth, but my understanding is unfruitful. What is it then? I will pray with the spirit, and I will pray with the understanding also: I will sing with the spirit, and I will sing with the understanding also” (1 Corinthians 14:14-15).
Singing with the spirit is singing in other tongues. These songs come out of your spirit, not from your understanding. It’s similar to the way you yield your tongue to the Holy Spirit to pray in tongues, only that this time, you’re singing in other tongues and worshipping the Lord.
Jesus said, “God is a Spirit: and they that worship him must worship him in spirit and in truth” (John 4:24). Worshipping in the spirit is higher. That’s the climax. You may sing and worship the Lord in your understanding, and that’s okay, but ascend higher; sing songs from your spirit; worship and relate from your spirit; it’s a deeper fellowship.
The latter part of our opening scripture says, “… singing and making melody in your heart to the Lord.” Your songs of the spirit aren’t to the congregation or to any individual. Those listening to you may not like the way the songs sound, but you’re not singing to them; you’re singing to the Lord! It’s like praying in tongues; it’s not unto men but unto God (1 Corinthians 14:2). It brings about a divine exchange; as your spirit is passing words in the spirit to God, the Holy Ghost is passing information to your spirit.
When you finish such sessions of fellowship with the Spirit, you’re literally on top of the world; no challenges move you, because your spirit has gained the dominion! At that point, you know without a doubt that you’re more than a conqueror, a victor for life!
Learn to function in the spirit, with your spirit, and by the Holy Spirit. Christianity is a life of the spirit, lived from the inside out.