"But he who received seed on the good ground is he who hears the word and understands it, who indeed bears fruit and produces: some a hundredfold, some sixty, some thirty." (Matthew )
The concept of bearing fruit is used often in Scripture. In the Gospels, Jesus told the story of a sower who went out to sow seed. The seed fell on various types of ground. Some of the ground was rocky and hard. Other ground was receptive, but weeds choked out the seed. But there was a portion of ground that was not rocky or weedy, and the seed took root. Jesus said that this was a picture of the different people who hear the gospel. Those who are true believers are those who bring forth fruit (see Luke 8:4-15).
What is bearing fruit? Essentially, it is becoming like Jesus. Spiritual fruit will show itself in our lives as a change in our character and outlook. As we spend time with Jesus and get to know Him better, His thoughts will become our thoughts. His purpose will become our purpose. We will become like Jesus.
The Bible gives an excellent description a life characterized by the fruit of the Spirit. Galatians 5:22-23 says, "But the fruit of the Spirit is love, joy, peace, longsuffering, kindness, goodness, faithfulness, gentleness, self-control."
Is that what others see in your life? If not, then either you don't know God or you are living outside of fellowship with Him. If that is the case, then a commitment or a recommitment to Him would be in order. God is not asking for a perfect life. But He is asking that these fruits be primary characteristics of a life that is lived for Him.