I've thought long and hard about it, yet cannot think of any good reason not to worship God.
He's promised us that nothing--not life or death, angels or principalities or powers, or present things or things to come, or height or depth, or any other created thing--can separate us from His love.
He provided all the proof we need through Jesus Christ our Lord.
He has given us all of His love.
Why would we withhold ours from Him?