I have long held since seminary days (per John Gerstner) that the refrain from the hymn “Trust and Obey” (#672 in the Trinity Hymnal) should not be sung as written:

Trust and obey,
for there’s no other way
to be happy in Jesus,
but to trust and obey.”

Rather, I would insist, there is no way to be “in Jesus” at all – happy or not – but to trust and obey.

But I now realize that both are true.  If we will not only be in Jesus but be happy in Jesus, we must trust and obey.  Indeed, understanding and believing Reformed soteriology still fall short apart from that certain child-like trust wherein is found that happiness sung of in the hymn.  I, for one, need more of this.

And calling to him a child, Jesus put him in the midst of them and said, “Truly, I say to you, unless you turn and become like children, you will never enter the kingdom of heaven.   Whoever humbles himself like this child is the greatest in the kingdom of heaven.  Whoever receives one such child in my name receives me.” (Matthew 18:2-5)