We understand and.interact with ideas based on the words used to present them. Words are tools. Some are effective; others are not. Just as a skilled craftsman chooses the correct tool for each job, we must use the correct word if we wish to communicate without confusion.
Within Christianity, wisdom is not the ultimate attainment. Love is far more important. In fact, if we had all knowledge it would be considered worthless without love (1 Cor. 13:2). But one key to growing spiritually is to increase in wisdom. In the very same Epistle, Paul tells us "However, we speak wisdom among those who are mature...we speak the wisdom of God in a mystery, the hidden wisdom which God ordained before the ages for our glory... These things we also speak, not in words which man's wisdom teaches but which the Holy Spirit teaches, comparing spiritual things with spiritual (2:6, 7, 13). In the next chapter he connects their carnality with their inability to receive solid food. They stunted their spiritual growth by continuing to feed only on milk when they should have been growing in wisdom. Spiritual growth and knowledge of the Word are supposed to go together. Without love, knowledge merely puffs up (1 Cor. 8:1), and without knowledge, love is mere sentimentality. Therefore, we must study God's Word and make the effort to make it plain.