"God is not there just when its convenient to you"
Wrong. God's hours are 24/7, 365/eternity.
Yes God is there 24/7 unto eternity (praise the Lord),
but the onus is:
Are we there for God? a lot of us won't give him an hour a week.
And when churches encourage this behavior, we have the danger of being like the church at Sardis:
2: Awake, and strengthen what remains and is on the point of death, for I have not found your works perfect in the sight of my God.
3: Remember then what you received and heard; keep that, and repent. If you will not awake, I will come like a thief, and you will not know at what hour I will come upon you.
4: Yet you have still a few names in Sardis, people who have not soiled their garments; and they shall walk with me in white, for they are worthy.
5: He who conquers shall be clad thus in white garments, and I will not blot his name out of the book of life; I will confess his name before my Father and before his angels.
or worse, being like the church at Laodicea:
14: "And to the angel of the church in La-odice'a write: `The words of the Amen, the faithful and true witness, the beginning of God's creation.
15: "`I know your works: you are neither cold nor hot. Would that you were cold or hot!
16: So, because you are lukewarm, and neither cold nor hot, I will spew you out of my mouth.
17: For you say, I am rich, I have prospered, and I need nothing; not knowing that you are wretched, pitiable, poor, blind, and naked.
It is truly a scandal when a church decides that Sunday is inconvenient.