For many Christians, per Wikipedia; “the word of knowledge is often defined as the ability of one person to know what God is currently doing or intends to do in the life of another person. It can also be defined as knowing the secrets of another person’s heart. Through this revelation, it is believed that God encourages the faith of the believer to receive the healing or comfort that God offers.^[1] For example, in a public gathering, a person who claims to have the gift of knowledge may describe a medical problem (such as syphilis or trench foot) and ask anyone suffering from the described problem to identify themselves and receive an effective prayer for healing.^[3] According to this definition, the word of knowledge is a form of revelation similar to prophecy or a type of discernment.^[1] https://en.wikipedia.org/wiki/Word_of_Knowledge

WORDS OF KNOWLEDGE IN THE BIBLE

“Words of knowledge occur throughout the Bible. As Mary approached Elizabeth when they were both pregnant, by Holy Spirit’s revelation Elizabeth knew her cousin was carrying God’s Son (see Luke 1:41). When Jesus told Peter and other fishermen that casting their nets to the boat’s right side would produce a great catch, He spoke through a word of knowledge (see Luke 5:4). When the new baby was brought to Anna, she reinforced that He was truly the awaited Messiah through a word of knowledge (see Luke 2:38). After Saul’s Damascus Road experience, Ananias received a word of knowledge that confirmed Saul’s conversion (see Acts 9:10-18).

My favorite word of knowledge story is from Jesus’ ministry. Just like today, when people debate prophetic validity, Jesus was constantly challenged. Once, Nathanael had been sitting beneath a fig tree when an excited Philip told him Jesus was the Messiah. Nathanael couldn’t believe it because Jesus was from a less-than-desirable city, and “Can anything good come out of Nazareth?” (John 1:46). Can’t you imagine this discussion today? Can anything good come from that city, college, family, occupation? But Jesus changed Nathanael’s opinion when, as he approached the Lord, Jesus made a statement. When Nathanael asked, “How do You know me?” (John 1:48), Jesus replied, “Before Philip called you, when you were under the fig tree, I saw you” (John 1:48). This incident mirrors my experiences. As a result of Holy Spirit’s revelation, people are changed.

The Greek for words of knowledge is gnosis, which means “knowing (the act)…knowledge, science.” References exist to gnosis as spiritual words of knowledge and as literal knowledge. Paul uses this word in 1 Corinthians 8:1 when he explains how people tried to settle a doctrinal dispute with logic rather than love toward one another. He also uses the word in 1 Corinthians 12:8 when he discusses the gifts, “For to one is given the word of wisdom through the Spirit, to another the word of knowledge through the same Spirit.” Paul’s usages are far apart—one deals with logical knowledge, the other with spiritual knowledge. However, that duality describes us. We’re flesh and blood men and women who allow the Spirit to work as revelation planted into our spirits comes into our physical minds, giving access to spiritual revelations.

Words of knowledge provide much for Spirit-filled Christians. They enrich lives and give understandable revelations (see 1 Cor. 1:5; 2:10). They make us conquerors (see 2 Cor. 10:4-5). Those words are beautiful smelling. Like a costly perfume, Holy Spirit “through us diffuses the fragrance of His knowledge in every place” (2 Cor. 2:14). Think of that. Through us, God brings that beautiful fragrance everywhere we go, and the gnosis knowledge creates the sweet savor of God. When you come into a room, do you bring Holy Spirit’s fragrance?

More at; https://www.destinyimage.com/blog/2015/02/05/words-of-knowledge

NINE GIFTS OF THE HOLY SPIRIT EXPLAINED

In this simple teaching, David Diga Hernandez explains the function of each of the 9 gifts of the Holy Spirit.