7 Be patient, therefore, brothers, until the coming of the Lord. See how the farmer waits for the precious fruit of the earth, being patient about it, until it receives the early and the late rains. 8 You also, be patient. Establish your hearts, for the coming of the Lord is at hand. 9 Do not grumble against one another, brothers, so that you may not be judged; behold, the Judge is standing at the door. 10 As an example of suffering and patience, brothers, take the prophets who spoke in the name of the Lord. 11 Behold, we consider those blessed who remained steadfast. You have heard of the steadfastness of Job, and you have seen the purpose of the Lord, how the Lord is compassionate and merciful.
–James 5:7-11 (ESV)

Grumbling to one another can cripple the exercise of Christian love. Why? Because it puts a stumbling block in the way of our brother’s faith.

This passage teaches me that I will be held accountable for the way I relate to my brothers and sisters in the faith.

Sobering thought, that!