TGIF is a common phrase, meaning of course: Thank God it’s Friday.
Well, since it is in fact Friday, I will thank God it is Friday. However, not for the same reason as the originators of the phrase probably meant it.
In 1 Thessalonians 5 Paul encourages the Thessalonians to be ready for the Day of the Lord. To live ready to be judged by the Lord. Note that Paul closes the letter with “The Grace of the Lord Jesus Christ be with you”, so all this is in the power of Christ working in us.
Therefore, encourage one another and build one another up, just as you are doing. We ask you, brothers, to respect those who labor among you and are over you in the Lord and admonish you, and to esteem them very highly in love because of their work. Be at peace among yourselves. And we urge you, brothers, admonish the idle, encourage the fainthearted, help the weak, be patient with them all.See that no one repays anyone evil for evil, but always seek to do good to one another and to everyone. Rejoice always, pray without ceasing, givethanks in all circumstances; for this is the will of God in Christ Jesus for you. Do not quench the Spirit. Do not despise prophecies, but test everything; hold fast what is good. Abstain from every form of evil.
So, let us give thanks in all circumstances. If it’s Friday or, even if, ugh, it’s a Monday. Or we’re sick. Or we are well. Or we are unemployed. Or we have much. We are already rich in the Grace of our Lord!
The Lord knows you and calls you by name. Let us go and love one another as Christ loved us.