'Merely' in the Bible

If you [only] love those who love you, what credit is that to you? For even sinners love those who love them.

But the one who has [merely] heard and has not practiced [what I say], is like a [foolish] man who built a house on the ground without any foundation, and the torrent burst against it; and it immediately collapsed, and the ruin of that house was great.”

So you too, when you have done everything that was assigned and commanded you, say, ‘We are unworthy servants [undeserving of praise or a reward, for we have not gone beyond our obligation]; we have merely done what we ought to do.’”

But the tax collector, standing at a distance, would not even raise his eyes toward heaven, but was striking his chest [in humility and repentance], saying, ‘God, be merciful and gracious to me, the [especially wicked] sinner [that I am]!’