Psalm 34:8 Oh, taste and see that the Lord is good; Blessed is the man who trusts in Him!
How many times have you been asked to taste some strange food? Did you like it despite what people said?
If we are not going to taste the Gospel we are never going to know how good it really is. Yes we can rely on what other people say, but in order to really know, we have to taste it for ourselves.
God wants each of us to make up our own minds about Him and His love for us. He wants each of us to get to know Him personally and not just trough someone else.
If you want to be close to God you have to first invite Him into your life!