THE POISONING OF THE SPIRIT
A believer’s spirit can become poisoned by evil spirits. This is what the fiery darts of the enemy do. He can shoot his darts directly into a believer’s spirit. He can shoot sorrow, sadness, suffering, grief, and heartbreak into a believer’s spirit, causing him to have a "sorrowful spirit" (1 Sam. 1:15). "But a wounded spirit who can bear?" (Prov. 18:14). Hence, this greatly affects a person. When a believer feels sorrowful, he thinks he is feeling sorrowful, considering this sorrow to be very natural. He does not try to find out its cause nor does he try to oppose it at all. He accepts everything that comes to him silently and without any objection. We have to remember that this is very dangerous. We can never accept a thought carelessly or allow any feeling to come into us. If we want to walk according to the spirit, we have to be watchful in everything; we must study all our thoughts and feelings and find out where they come from.
Sometimes Satan causes our spirit to become hard, stubborn, narrow, selfish, wild, and disobedient. Consequently, the spirit is not able to cooperate with the Holy Spirit and carry out God’s will. We will lose all of our love for men and all of our gentleness, sympathy, and considerations for the weaknesses of others. When this happens, the Holy Spirit cannot use us to any great extent; we will have lost the Lord’s broadness and set up a boundary for ourselves.
Sometimes the enemy puts an unforgiving spirit into the believers. This is the most frequent poison that believers take in. This probably accounts for the majority of the cases of failure in spiritual believers. This kind of poison, such as fastidiousness and vengeance, is the most deadly poison to the spiritual life. Even after a believer has suffered from this poison, most of the time he will still not be clear about what happened or realize that this poison came from Satan. Instead, he thinks that he hates others and that this cannot be removed.
Sometimes Satan causes believers to become narrow. He will cause believers to set a boundary for themselves and separate themselves from others. If believers do not have the concept of the church being the Body of Christ, instead making their own little group their foremost concern, it is a sign that their spirit has dwindled and become narrow. A spiritual believer considers God’s business as his own business and the whole church as the object of his love. If his spirit is open, the river of life will flow everywhere. But if he becomes narrow, he will frustrate God’s work and minimize his own usefulness. If our spirit is not big enough to include all of God’s children, it means that our spirit has been poisoned.
Sometimes Satan causes the believers’ spirit to become proud. In this way they become boastful, self-respecting, and self-esteeming. Satan causes the believers to think that they are not destitute, that they are somewhat important, and that they have some worth in God’s work. This kind of spirit is also a great cause for the believers’ failures. "Pride goeth before destruction,/and a haughty spirit before a fall" (Prov. 16:18).
The evil spirits inject such things together with other poisons into the believers’ spirit. If the believers do not oppose these things immediately, they will quickly turn into things of the flesh. If believers know how to live in the spirit, these things will only be Satan’s poison at the beginning; they will not have an opportunity to become a sin of the flesh. However, if believers do not oppose them, subconsciously accepting them instead, they will soon turn into sins of the flesh.
(Spiritual Man, The (3 volume set), Chapter 23, by Watchman Nee)