“Rejoice in the Lord always, again I say rejoice! Let your forbearing spirit be known to all men. The Lord is near.”
To rejoice is not the same as to be “happy”. “Happy” depends on our selves and/or the environment around us. God desires that we are always “rejoicing”. He desires that we have peace and assurance in our hearts. When we do, we are able to have forbearing spirits towards others.
The Lord is near
We cannot see God, but He is definitely near to us, and He watches over us. We can rejoice, not because we are financially well off. Not because we have a family or a good job. We can rejoice because the Lord(God) is always near us!