Hello.
You want scriptures to prove you are allowed to laugh?
Joyful people smile, then laugh. Is it not a physiological reaction to joy?
My view on laughing is that when people experience the supernatural joy of the Lord they will smile, laugh, jump for joy, then perhaps even weep?
The problem is that in the church when everyone is hyped up attention seekers and flakes try to mimic the gifts of the spirit to make themselves look good. Some people fake laughing through joy, the same as they fake tongues, healing, being slain in the Spirit etc etc.
The video posted above, you can see some folk are faking it. But fakes do not mean there is no genuine. Fake banknotes do not mean there is no money.
Ah lis you sort of beat me to the punch on this one.
Laughter is an emotional reaction. Have you ever been somewhere where people are laughing uncontrollably about something really funny and you don't know what it is they are laughing about, but you find yourself start laughing with them?
Same thing.
It is a physiological and emotional response.
The presence of God (which produces a realization of grace and truth) being a supernaturally positive experience, it makes since that some people would emotionally react to it through laughter. Also it makes since that people are overcome with laughter because they are emotionally responding to someone else's laughter.
It is also obvious that people fake such things because they want to feel that same feeling as before and try to induce it or they try to manipulate others into a feeling or they do it to make themselves feel spiritual or look spiritual to others around them to help reinforce or relive the memories of a past occurrence or have never had an experience (realization of grace and truth) with God and try to fake it to feel accepted into the circle of their peers.
Emotional reaction is not proof of a spiritual experience, but it can be evidence of one.
The fruit of the Spirit: Joy, love, peace, kindness, self control, etc... are not the Spirit, but reactions to the presence of God's Spirit (the truth of God realized) in a person's life.
We realize we are loved and we then feel and exhibit love.
We realize we are at peace with God through what Jesus did for us and we then exhibit peace.
We realize the kindness of God through the truth of His kindness to us expressed in Jesus and we in turn exhibit kindness.
We experience a life of freedom where we are in right relationship with God and experience love, joy, peace, kindness, gentleness which in turn produces self control in a person because they seek to nurture these things because they are desirably pleasant experiences and the natural goal of a relational creature.