Scripture teaches us to gently help a struggling brother or sister pointing them in the right direction but to watch for the beam in our own eyes.
We give such help through the guidance of the Holy Spirit, with love, mercy, long-suffering, gentleness and grace without interfering with the Lord Himself who is correcting, changing and growing believers. Likewise, we are all under construction and will not be perfect until we see Him face to face.
The Lord reminds all of us: Learn to love your neighbor and learn mercy.
We need to look at every brother and sister in Christ as being in Christ which gives us a foundation and basis for fellowship. If someone is not in Christ then there will be no fellowship of the Spirit and no common love for the things of God. Christ is the unity of the Church and as each member of the body looks to the Head to whom they are connected they also find their unity with others in the body to whom they are also connected.
It is a dangerous thing to judge others, for God will measure that judgment upon us with the same severity.
Judging others reflects in our speech, emotions, thoughts, our hearts, and our actions and makes us a hypocrite before God. It is maturity in Christ to pray for those we are concerned about and not talk about their problems with others.