God speaks through others who are filled and led by the Holy Spirit.
They are spiritually mature and have known and walked with Jesus through the ups and downs of life. They have trained themselves in righteousness and discernment (Hebrews 5:14), handling the Word of truth rightly (1 Timothy 3:15).
God designed us to live in a community. Just as God exists in three Persons in perfect harmony and fellowship, we are designed to function as unique members of a single body of Christ. For this reason, God delights to use other believers in your life for encouragement, training, and guidance. God uses others to show his goodness, love, and wisdom.
Asking Spirit-filled believers in Jesus, you can receive insights from God through them.
It is sometimes wise to seek more than one person for counsel. When two or more people tell you a similar thing or the same thing, that is weightier for you to consider more carefully.