Those who use flattery and praise instead of instruction and realization will hold others back.
Proverbs 29:5: "A man who flatters his neighbor spreads a net for his feet"
James 1:12 "Blessed is the man who remains steadfast under trial, for when he has stood the test he will receive the crown of life, which God has promised to those who love him."
1 Peter 5:10 "And after you have suffered a little while, the God of all grace, who has called you to his eternal glory in Christ, will himself restore, confirm, strengthen, and establish you."
James 1:2-8 "Count it all joy, my brothers, when you meet trials of various kinds, for you know that the testing of your faith produces steadfastness. And let steadfastness have its full effect, that you may be perfect and complete, lacking in nothing. If any of you lacks wisdom, let him ask God, who gives generously to all without reproach, and it will be given him. But let him ask in faith, with no doubting, for the one who doubts is like a wave of the sea that is driven and tossed by the wind."
God allows us trials to build our emotional and Spiritual muscles so that we can be useful for His Work that He has for us.
Those who avoid trials and cannot admit their failures will not grow; they remain spiritual and emotional infants until they confess to be cleansed by God.