You looked but it appears your theology is making you change what is there. The whole point of the exercise is to show that the phrase "Son of God" when used of Jesus, has a whole other meaning than when it is used of men.
Matt 4 - twice Satan uses the phrase "if you are the Son of God" while tempting Jesus.
Matt 8:28-29, "28 And when he came to the other side, to the country of the Gadarenes, two demon-possessed men met him, coming out of the tombs, so fierce that no one could pass that way. 29 And behold, they cried out, What have you to do with us, O Son of God? Have you come here to torment us before the time? "-
Matt 14:32-33, "32 And when they got into the boat, the wind ceased. 33 And those in the boat worshiped him, saying, Truly you are the Son of God."
Matt 16:15-16, "15 He said to them, But who do you say that I am? 16 Simon Peter replied, You are the Christ, the Son of the living God."
Matt 26:63-64, "63 But Jesus remained silent. And the high priest said to him, I adjure you by the living God, tell us if you are the Christ, the Son of God. 64 Jesus said to him, You have said so. But I tell you, from now on you will see the Son of Man seated at the right hand of Power and coming on the clouds of heaven."
Matt 27:38-43, "38 Then two robbers were crucified with him, one on the right and one on the left. 39 And those who passed by derided him, wagging their heads 40 and saying, You who would destroy the temple and rebuild it in three days, save yourself! If you are the Son of God, come down from the cross. 41 So also the chief priests, with the scribes and elders, mocked him, saying, 42 He saved others; he cannot save himself. He is the King of Israel; let him come down now from the cross, and we will believe in him. 43 He trusts in God; let God deliver him now, if he desires him. For he said, I am the Son of God."
Matt 27:50-54, "50 And Jesus cried out again with a loud voice and yielded up his spirit. 51 And behold, the curtain of the temple was torn in two, from top to bottom. And the earth shook, and the rocks were split. 52 The tombs also were opened. And many bodies of the saints who had fallen asleep were raised, 53 and coming out of the tombs after his resurrection they went into the holy city and appeared to many. 54 When the centurion and those who were with him, keeping watch over Jesus, saw the earthquake and what took place, they were filled with awe and said, Truly this was the Son of God!"
John 1:34-36, " 34 And I have seen and have borne witness that this is the Son of God. 35 The next day again John was standing with two of his disciples, 36 and he looked at Jesus as he walked by and said, Behold, the Lamb of God!"
John 3:16-18, "16 For God so loved the world,that he gave his only Son, that whoever believes in him should not perish but have eternal life. 17 For God did not send his Son into the world to condemn the world, but in order that the world might be saved through him. 18 Whoever believes in him is not condemned, but whoever does not believe is condemned already, because he has not believed in the name of the only Son of God."
Etc.
It is perfectly clear that the phrase "Son of God" meant something else entirely when it was used of Jesus--he was the Son of God, even the only Son of God, by his own admission; never a Son of God, never.